Find the inverse of function f. f(x)=9x+7
A. F-1(x)= -9x-7
B.F-1(x)= 1/9x-7/9
C.F-1(x)= 7x+9
D.F-1(x)= 7/9x-1/9

Answers

Answer 1

Answer:

B

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 9x + 7 ( subtract 7 from both sides )

y - 7 = 9x ( divide all terms by 9 )

[tex]\frac{1}{9}[/tex] y - [tex]\frac{7}{9}[/tex] = x

Change y back into terms of x with x = [tex]f^{-1}[/tex](x) , thus

[tex]f^{-1}[/tex] (x) = [tex]\frac{1}{9}[/tex] x - [tex]\frac{7}{9}[/tex] → B


Related Questions

A plece of wood has a volume of 30 cm. It has a length of 2 cm and a width of 3 cm. What is the height of the wood?
5 cm
60 cm
15 cm
6 cm

Answers

Answer:

HERE IS YOUR ANSWER

Step-by-step explanation:

volume = length × width × height

30 = 2 × 3 × h

30 = 6h

5=h

It is 5 cm high

Hope it helps you

Regards,

Rachana

Write the inverse function for the function, ƒ(x) =x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.

ƒ -1(x) =

ƒ -1(4) =

Answers

Answer:

f-1(x)=x-4

f-1(4)=0

Step-by-step explanation:

to get an inverse function, replace x with y, and y with x.

y=x+4  ---> x=y+4

solve for y: x=y+4 --> y=x-4 --> f-1(x)=x-4

f-1(4)=(4)-4=0

State the range of the relation. {(3,-2),(4,-3),(5,-4),(6,0)} *

Answers

Answer:

range { -4,-3,-2,0}

Step-by-step explanation:

The range is the output values

range { -4,-3,-2,0}

Find the x-intercept and the y-intercept of the line below. Click on "None" if applicable.

Answers

The x intercept is 1 and the y intercept is -2. Hope this helps. The X axis is the horizontal line whilst the y axis is the vertical line.

The required x-intercept and y-intercept of the given line in the graph are 1 and -2 respectively.

What is an intercept of a line?

The intercept of the line is defined as points where the line intersects the principle axes.

Here,
The x-intercept and y-intercept of the line are defined as the points where the given line cuts the coordinate axes.
So, from the above definition, the line intersects the x-axis at +1 and intersects the y-axis at -2.

Thus, the required x-intercept and y-intercept of the given line in the graph are 1 and -2 respectively.

Learn more about intercept here:
https://brainly.com/question/14180189
#SPJ2

help pls ?? it’s confusing

Answers

Answer:

2x+24+4x+36=180

6x+60=180

6x=180-60

6x=120

x=120/6

x=20

So <KPL=64 AND <JPL=116

Answer:

KPL = 64 JPL = 116

Step-by-step explanation:

This is a straight angle, meaning this angle will equal 180 degrees.

They give you two parts of this angle, which is (2x+24) and (4x+36)

All you have to do is add them and set this equal to 180.

So when you add 2x+24+4x+36=180 that equals 6x+60=180

Do the algebra, subtract 60 on both sides.

180-60=120

Now divide 6 on both sides.

120/6 = 20

Great, so now solved x. To find the angles, we must plug them in.

2(20)+24= 64

4(20)+36= 116

So your answer should be

KPL = 64 and JPL = 116.

This is correct because when you add these results together, you get 180.

-3(x+n)=x
Rewrite each equation to solve for x

Answers

Answer:

isolate the variable by dividing each side by factors that dont contain the variables. so this mean -3(x+n)=x becomes x= -3n over 4, I hope this helps.

Gayle is saving money to buy a
camera that costs $315. She has
$40 saved, and each week she adds
$25 to her savings. How many
weeks will it take Gayle to save
enough money to buy the camera?

Answers

It will take Gayle 11 weeks

Find the distance between the two points in simplest radical form.
(-1,0) and (5, -8)

Answers

Answer:

10

Step-by-step explanation:

Given coordinates:

       (-1,0) and (5, -8)

Unknown:

Distance between the two endpoints = ?

Solution:

     (-1,0) and (5, -8)

The equation for solving this problem is shown below;

      Distance  = [tex]\sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1} )^{2} }[/tex]

x₁  = -1      y₁ = 0

x₂  = 5      y₂  = -8

      Distance  = [tex]\sqrt{[(5-(-1)]^{2} + (-8 - 0)^{2} } }[/tex] = [tex]\sqrt{36 + 64}[/tex]   = 10

The distance between the two points is 10.

Please help!! Will Mark brainliest!!

Answers

the answer for this question would most likely be 71

7+root 3 divided by 7-root 3

Answers

7 + root3 = 8.73
7 - root3 = 5.26
Thus
8.73/5.26 = 1.659

what is 328 divided by 23 with the remainder

Answers

Answer:

7.1

Step-by-step explanation:

328 23 = 14.2608695652

14.2608695652 = 142.608695652 to the nearest tenth

14.2608695652 = 14.26 to the nearest hundredth

14.2608695652 = 14.261 to the nearest thousandth

= 0 to the nearest tenth

= 0 to the nearest hundredth

= 0 to the nearest thousandth

Other Divisions Math homework are

328 divide by half plus 20

Homework answers: (328/2) + 20 = 184

328 divide by half plus 40

Homework answers: (328/2) + 40 = 204

328/23 divided by 2

Answer: (328/23) ÷ 2 = 7.13043478261

14.27 if rounded up if not den 14.26086956521739

Aliza needs to run at a rate faster than 8.8 feet per second in order to exceed her fastest time in a race. After running for 15 minutes, her coach determines that she is running at an average rate of 5.8 miles per hour. He concludes that she is not running fast enough to exceed her fastest time.

Answers

Answer:

Answer: The question is a multiple choice so it's A and C:)

Answer:

He used an incorrect time ratio converting hours to minutes.

He incorrectly concluded that she is not running fast enough.

Last question!

Find the equation of the line

Y=__x +__

Answers

The answer is y=-2/6x + 5

please help me solve this!!
5x = 3y + 18
3x + 5y = 4

Answers

Answer:

Slope=

2.000

1.200

=0.600

x−intercept=

3

4

=1.33333

y−intercept=

−5

4

=−0.80000

thats the first one

Step-by-step explanation:

this is a system of equations.

eliminating method:

1) move the 3y to the other side so it looks like the second equation.

5x - 3y = 18
3x + 5y = 4

2) multiply both of the equations by a number to make the equations eliminate one of the variables.

5(5x - 3y = 18) —> 25x - 15y = 90

3(3x + 5y = 4) —> 9x + 15y = 12

3) subtract the two equations (the y’s crossed out) and solve for x:

16x = 78
16x/16 = 78/16
x = 4.875 ≈ 4.9 ≈ 5

4) plug x into one of the two equations (preferably the easier one) to solve for y:

5(4.875) - 3y = 4
24.375 - 3y = 4
-3y = -20.375
-3y/3 = -20.375/-3
y = 6.791667 ≈ 6.8 ≈ 7

answers: x = 4.9 / y = 6.8

The length of a rectangle is twice that of the width. The perimeter of the rectangle
is 24 cm. What is the width of the rectangle?

Answers

9514 1404 393

Answer:

  4 cm

Step-by-step explanation:

The sum of length and width is half the perimeter, so is 12 cm.

The width : length ratio is 1 : 2. The width is 1/(1+2) = 1/3 of the total of length and width, so is ...

  (1/3)(12 cm) = 4 cm

The width of the rectangle is 4 cm.

Which infinite geometric series can you NOT find the sum?
A) 96, 24, 6, 1.5, 0.375,...
B) 81, 72.9, 65.61, 59.049,...
C) 127, 152.4, 182.88, 219.456,...
D) 154, 53.9, 18.865, 6.60275,...

Answers

Answer: C) 127, 152.4, 182.88, 219.456,...

Step-by-step explanation:

You can only find the sum of an infinite geometric sequence if it converges.

One criterion to see if the series converges is if:

aₙ < aₙ₋₁

This means that, as n increases, the value of the terms decreases.

This means that as n tends to infinity, aₙ tends to zero.

Then we only can find the sum of those series where the terms are decreasing.

in A, B and D the terms are decreasing, then we can find the sum of those 3 series.

Now in the case of C, the terms are increasing, then we can not find the sum of that series.

PLS HELP ASAP FOR BRAINLIEST

Answers

Answer:

y=3

Step-by-step explanation:

it is because X=-2 had crossed the point y=3

hope this help you!!!! ;))))))

pleassseee help will give good rating and brain :)

Answers

Answer:

Step-by-step explanation:

1. (x-3)(x+8)

x^2+5-24

2. (-3x+2)(4x+5)

-12x^2-7x+10

3. (x+4)(x-4)

x^2-16

4. (x+5)^2

x^2+10x+25

5. (2x-7)^2

4x^2-28x+49

6. (x-7)(x+7)

x^2-49

7. (5x-1)(2x+4x-3)

30x^2-13x+3

8. (3x^3+7x^2+7x+10

what is binomil (2a–1)(a–3)

Answers

Answer:

[tex]2a^2-5a+3[/tex]

Step-by-step explanation:

2a(a-3)-1(a-3)=

2a^2-6a-a+3=

2a^2-5a+3

Answer:

Step-by-step explanation:

A shorter style of cup is stacked tall. The graph displays the height of the stack in centimeters for different numbers of cups. How much does each cup after the first add to the height of the stack? (Hint: How much height is gained per cup added?) Explain how you know.

SCREENSHOT OF GRAPH! HELP

Answers

Answer:

0.5 cm

Step-by-step explanation:

We are looking for how much height is gained per cup added.

Height per cup added can be calculated by finding the slope of the line that runs through the two given points on the graph, (3, 5.5) and (8, 8).

Formula for slope = [tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Let,

[tex] (3, 5.5) = (x_1, y_1) [/tex]

[tex] (8, 8) = (x_2, y_2) [/tex]

[tex] m = \frac{8 - 5.5}{8 - 3} [/tex]

[tex] m = \frac{2.5}{5} [/tex]

[tex] m = 0.5 [/tex]

0.5 cm is gained per cup added.

The rise in height per cup will be 0.5 cm.

Given information:

The given graph displays the height of the stack in centimeters for different numbers of cups.

The given points on the graph are (3,5.5) and (8,8).

Now, the slope of the line joining these two-point will give the rise per cup.

So, the slope will be calculated as,

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}\\m=\dfrac{8-5.5}{8-3}\\m=\dfrac{2.5}{5}\\m=0.5[/tex]

So, the slope is 0.5 centimeters per cup.

Therefore, the rise in height per cup will be 0.5 cm.

For more details, refer to the link:

https://brainly.com/question/18896190

dividing a faction by a fraction 3/5 divided 1/3​

Answers

(3/5) / (1/3) = 3*3/5*1 = 9/5 or 1 4/5

Answer:

9/5

Step-by-step explanation:

3/5 ÷ 1/3

3/5 ÷ 3/13/5 × 3/1 = 9/5

9/5

Which graph shows a set of ordered pairs that represent a function ?

Answers

Answer:

C

Step-by-step explanation:

if you draw a line between the points then draw vertical lines they dont cross more than one dot

What is 1 11/16 simplified

Answers

Answer:

Its already simplified but if you mean a mixed number then its 27/16

Step-by-step explanation:

WILL MARK BRAINLEST FOR CORRECT ANSWER

STANDARD FORM

4x + 6y = 12

Find the X and Y intercepts
(0, ) ( ,0)

Answers

Answer:

Shouldn't it be (4,0) and (0,6)?

Step-by-step explanation:

Patty needs a total of $80 to buy a bicycle. She has already saved $35. If she saves $10 a week from her earnings, what is the least number of weeks she must work to have enough money to buy the bicycle?

Answers

Answer:

5 weeks

Step-by-step explanation:

She would need to work at least 8 weeks because the bicycle is $80 and she has $35.

Answer:

5 weeks

Step-by-step explanation:

i took 80 - 35 to get 45 (money she still needs)

then took 45 divided by 10 to get 4.5 ( how many weeks till she has the money)

and if you get 10 dollars per week and its asking how many weeks

you have to up the 4 by one because it has a .5

so it would be 5 weeks

Please someone help meee!!

Answers

Option B is the correct answer

PLEASE HELP!!! MATH FINAL

Answers

Answer:

He Won 26 Box trolls and 11 Pikachus

Step-by-step explanation:

You subtract 37-11 which would get you 26

26 and 11...............

If f(x) = 2x-5 and g(x) = x2 - 4x - 8, find (f+ g)(x).
O A. (f+9)(x) = x2 - 2x - 13
O B. (f+g)(x) = x2 + 2x - 3
O C. (f+g)(x) = x2 - 2x-3
O D. (f+g)(x) = 3x2 - 4x - 13

Answers

The addition of the functions f(x) and g(x) will be (f+ g)(x) = x² – 2x – 13. Then the correct option is A.

What is a function?

Functions are found all across mathematics and are required for the creation of complex relationships.

If f(x) = 2x – 5 and g(x) = x² – 4x – 8.

Then the function (f+ g)(x) will be

(f+ g)(x) = f(x) + g(x)

(f+ g)(x) = 2x – 5 + x² – 4x – 8

(f+ g)(x) = x² – 2x – 13

Then the correct option is A.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ1

Which table represents a linear function?

x---y
0---1
1---2
2---4
3---8

x---y
0---0
1---1
2---3
3---6

x---y
0---0
1---1
2---0
3---1

x---y
0---1
1---3
2---5
3---7​

Answers

Answer:

I am pretty sure the last one is correct

The table that represents a linear function is:

x---y

0---1

1---2

2---4

3---8

Here, we have,

from the given tables, we get, the information that,

from the 1st table, we get,

x---y

0---1

1---2

2---4

3---8

In this table, the y-values increase by a constant difference of 1 as the x-values increase by a constant difference of 1.

This indicates a linear relationship between x and y, where the y-value is twice the x-value.

but, in the other tables, we can't get any linear relationship between x and y.

so, we get,

The table that represents a linear function is:

x---y

0---1

1---2

2---4

3---8

To learn more on function click:

brainly.com/question/21145944

#SPJ7

Grandma baked 969696 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received ccc fewer cookies than she would have received had all of the cookies been evenly divided among the 8 grandchildren. How many cookies did Cindy receive?

Answers

Answer:

Cindy get (12-c) amount while others get 12 cookies

Step-by-step explanation:

From the question we are informed that Grandma baked 96 cookies

And there are 8 Number of grandchildren available

But the cookies must be divided equally among this grandchildren to calculate the number of cookies each of them get we have,

= 96 cookies baked/8 Number of grandchildren available

= 12 cookies

Which means each get 12 cookies

But

Cindy received less cookies with less C amount.

Then Cindy own will be( 12-c) cookies

Therefore Cindy get (12-c) amount while others get 12 cookies

Answer:

12-c

Step-by-step explanation:

Khan academy unit test, 7th grade math.

Other Questions
What are graphs? Give an example of a graph that would be useful to you in your everyday life. Two students described a part of Earth's innermost layer.Daniel: Densest partJoshua: Has highest temperature and pressureWhich part of the innermost layer did Daniel and Joshua describe? They both described the outer part. They both described the inner part. Daniel described the outer part and Joshua described the inner part. Daniel described the inner part and Joshua described the outer part. Can Somebody Take A Spooky Picture For Me, It's For Photography Class And I Don't Have Batteries For Camera, The Theme Is Spooky THX : ) Write any four "Change Case" options available in OpenOffice writter URGENT!!!! What are the x and y-intercepts of the line described by the equation?2x 6y = 30Enter your answers in the boxes. what organism that would be classified as an animal Prove the following statement directly from the definitions. The difference of any two rational numbers is a rational number. Proof: Suppose r and s are any two rational numbers. By definition of rational, r Part AWhat argument does Kennedy make in his Ich bin ein Berliner speech?Democracy is the only system that guarantees prosperity to all Germans.Democracy can exist alongside communism in Germany because it is an accepting system.Many Germans have suffered under communism.Communism must be altered to allow more individual freedom for Germans.Question 2Part BWhich answer choice presents the most logical reasoning in support of the argument identified in Part A?"There are many people in the world who really don't understand, or say they don't, what is the great issue between the free world and the Communist world.""... one German out of four is denied the elementary right of free men, and that is to make a free choice.""All free men, wherever they may live, are citizens of Berlin.""There are some who say that communism is the wave of the future.Let them come to Berlin." I WILL GIVE BRAINLIEST TO WHO ANSWERS FIRST AND CORRECTLY.Select the statements that describe working with text in presentation programs.Working with text in presentation programs requires learning a new set of rules.Working with text in presentation programs is similar to working with text in other applications.The alignment of text in placeholders cannot be changed.Font size and font color can be changed in presentations.Audience size influences font size. Why did the "Civil War Amendments" (13th, 14th, and 15th) of the United States Constitution have limited effects on the status of African Americans in the South during the decades following the Civil War?A) The Civil Rights Amendments only applied to states of the Union, so states of the old Confederacy ignored them. B) Southern states used Black Codes and other legal and traditional measures to keep African Americans rights limited. C) The Confederate states never agreed to the terms of the peace of the war, so all restrictions on African Americans remained intact. D) The Civil Rights Amendments had little to do with the rights of African Americans, but rather the amendments focuses on the rights of women and children.Answer: Southern states used Black Codes and other legal and traditional measures to keep African Americans rights limited. Select the correct answer.Where do tectonic activities, such as earthquakes or volcanic eruptions, tend to occur?A. near plate boundariesB. near all mountainsC. in the center of continentsD. only on the ocean floor which is bigger. 34 1/2 or 34.5 On July 1, 2020, Buffalo Inc. made two sales. 1. It sold land having a fair value of $904,290 in exchange for a 4-year zero-interest-bearing promissory note in the face amount of $1,422,914. The land is carried on Buffalo's books at a cost of $591,300. 2. It rendered services in exchange for a 3%, 8-year promissory note having a face value of $408,830 (interest payable annually). Buffalo Inc. recently had to pay 8% interest for money that it borrowed from British National Bank. The customers in these two transactions have credit ratings that require them to borrow money at 12% interest.Required:Record the two journal entries that should be recorded by Vaughn Inc. for the sales transactions above that took place on July 1, 2020. The annual fundraising goal of a sports team is $100,000. So far $41,317 has been raised. How much more money is needed to reach the goal? Andrew wants to determine if playing classical music will affect the growth of his rose buses. Determine three constant variables of this experiment. The term "methodological atheism" refers to the idea that:a. a true scholar of religion is an atheist and uses their atheism as a basic methodological tool.b. the academic (historical-critical) scholar of religion must be skeptical of every claim they encounter.c. theologians are unable to do historical-critical work because they are unable to put aside their own beliefs when they investigate the ancient texts or cultures of their particular tradition.d. scholars, both theologians and academics, must be skeptical of all methodological claims made within such fields as sociology, anthropology, and history, so as to differentiate the study of religion from those fields. Anika wants to determine the maximum number of tulip bulbs (t) she can purchase if each bulb costs $1.50. She will also need to purchase separate pots for each bulb at $1.25 each and a bag of potting soil for $10.00. Set up an inequality to determine how many tulip bulbs Anika can purchase without spending more than $20.00, and solve it. Alok and his father are sitting at a distance of 5 meter on a seesaw. His father is at the distance of 2 meter from the fulcrum and Slok weighs 20 kg. If they are balancing the seesaw, find the weight of his father. What is the transcontinental railroad The break in ______ can affect meaning of a poem.chapterspagesparagraphsstanzasIs not C