The graph of an equation with a negative discriminant always has which characteristic?

Answers

Answer 1

Answer:

The graph does not intercept the x-axis

Step-by-step explanation:

Hi there!

When the discriminant is positive, it means that in the quadratic equation, you can take the square root of this number and end up with two distinct solutions, one negative and one positive. The graph will intercept the x-axis twice.

When the discriminant is zero, it means that you won't be taking the square root of any number in the quadratic equation and you'll end up with two solutions that are equal, or just one distinct solution. The graph will intercept the x-axis once.

When the discriminant is negative, it means that the quadratic has no real solutions, meaning that it does not intercept the x-axis. It is impossible to take the square root of a negative number.

I hope this helps!


Related Questions

Line A (y=4x+2) is transformed into Line B (y=x+5). Which best describes the new slope and y-intercept?

Answers

Answer:

The new slope is 1 and the line is shifted flatter.

Step-by-step explanation:

Line A slope is 4.

Line B slope is 1.

The y-intercept rose up 3

As far as slope, it became flatter because the line only rises 1 'square' for every 1 'square' it travels to the right. It was rising 4 'squares' for every 1 to the right.  

I need help please!!!

Answers

Answer:

answer is line m........

Help please thanks! :)

Answers

Answer:

Option A = 1/15 cubic meters

Step-by-step explanation:

Formule to find volume of rectangular prism:

Volume = width × height × length

V = w×h×l

V = 1/3 × 1/4 × 4/5

V = 1/15 cubic meters

Can someone help me understand this? Given that triangle ABC =~ triangle DEF, which of the following must be true?

Answers

Answer:

since these triangles are the same these angle must be the same

A=D

B=E

C=F

so the answer is C

Hope This Helps!!!

A school held a tennis tournament.After each round,one-forth of the players were eliminated.If there were 64 players at the start of the tournament,which equation models the number of players left after 6 rounds?​

Answers

Answer:

Option B

Step-by-step explanation:

After each round of the tournament one-fourth players are eliminated.

That means the process of elimination will represent the exponential decay.

Equation of exponential decay is given by the expression,

[tex]y=a(1-r)^n[/tex]

Here, a = Initial number of players

r = Fraction of reduction in the number of players

y = Final number of players

n = Number of rounds

In the given question,

Initial number of the players (a) = 64

Fraction of reduction in the number of players (r) = [tex]\frac{1}{4}[/tex]

                                                                             = 0.25

Number of rounds (n) = 6

By substituting these values in the expression,

[tex]y=64(1-0.25)^6[/tex]

Therefore, Option B is the answer.

2+4 = 8 and ½ + ½ = 1 is an example of which type of statement?

Answers

Answer:

it is an example of conditional statement.

hope it helps

Compare the graph h(x)=1/4x^2 to the graph of f(x) = x2.

Answers

Answer:

h(x) is the image after f(x) is horizontally stretched by a scale factor of 4

Step-by-step explanation:

Given

[tex]h(x) = \frac{1}{4}x^2[/tex]

[tex]f(x) = x^2[/tex]

Required

Compare h(x) to f(x)

We have:

[tex]h(x) = \frac{1}{4}x^2[/tex]

Substitute [tex]f(x) = x^2[/tex]

[tex]h(x) = \frac{1}{4}f(x)[/tex]

This means that f(x) is stretched horizontally by a scale factor of 4 to get h(x)

What is the reflection image of P(0, 0) after two reflections, first across x = −3 and then across y = 4?

Answers

Answer:

(-6, 8)

Draw the point, draw the lines of reflection, reflect, find coordinates.

Which ordered pair is a solution to the following linear system?

y= x + 1

y = -2x + 1

A) (-1,-2)
B) (2,1)
C) (0,1)
D) (0,0)

Answers

Answer:

C. (0,1)

Step-by-step explanation:

x + 1 = -2x + 1

3x = 0

x = 0

y = (0) + 1

y = 1

The function h(t) = –16t2 + 96t + 6 represents an object projected into the air from a cannon. The maximum height reached by the object is 150 feet.


After how many seconds does the object reach its maximum height?


2 seconds

3 seconds

6 seconds
9 seconds

Answers

Answer:

Step-by-step explanation:

This answer can be found in the h value for the vertex of a parabola, (h, k). The k value is the max height and we were already given that information. We need to solve for h. There's an easy way and a really complicated way...I'll show you the easy way because it's actually quite useful to know, especially when doing a lot of work with quadratics!

The formula to find h is

[tex]h=\frac{-b}{2a}[/tex] and in our quadratic, a = -16, b = 96 and c = 6. Filling in what we need:

[tex]h=\frac{-96}{2(-16)}[/tex] so

h = 3

At 3 seconds the max height of 150 feet is reached.

¿Cuál de los siguientes productos algebraicos es un Binomio Suma por Binomio Diferencia?


Seleccione una:
a. (a + b) (a - b)
b. (a - b) (a - b)
c. (a + b) (a + b)
d. (a + b) (c + d)

Answers

The answer is d hope that helps

Please help me I really need help

Answers

hi! the first one is -2+6 i & the second one is parallelogram!

Answer:

-2 + 6i

Parallelogram

Step-by-step explanation:

( 5 - 2i ) + ( - 7 + 8i )

remove parenthesis

5 - 2i + ( -7 ) + 8i

combine like terms

5 + (-7) = -2

-2i + 8i = 6i

-2 + 6i

The arrows on the opposite sides indicate that the sides are parallel

A shape with two sets of parallel sides is known as a parallelogram

Hello! Verify the identity. Please show your work! Use trigonometric identities to verify each expression is equal.


Yes this is from edge.

Answers

Answer:

See Below.

Step-by-step explanation:

We want to verify the identity:

[tex]\displaystyle \csc^2 x -2\csc x \cot x +\cot ^2 x = \tan^2\left(\frac{x}{2}\right)[/tex]

Note that the left-hand side is a perfect square trinomial pattern. Namely:

[tex]a^2-2ab+b^2=(a-b)^2[/tex]

If we let a = csc(x) and b = cot(x), we can factor it as such:

[tex]\displaystyle (\csc x - \cot x)^2 = \tan^2\left(\frac{x}{2}\right)[/tex]

Let csc(x) = 1 / sin(x) and cot(x) = cos(x) / sin(x):

[tex]\displaystyle \left(\frac{1}{\sin x}-\frac{\cos x }{\sin x}\right)^2=\tan^2\left(\frac{x}{2}\right)[/tex]

Combine fractions:

[tex]\displaystyle \left(\frac{1-\cos x}{\sin x}\right)^2=\tan^2\left(\frac{x}{2}\right)[/tex]

Square (but do not simplify yet):

[tex]\displaystyle \frac{(1-\cos x)^2}{\sin ^2x}=\tan^2\left(\frac{x}{2}\right)[/tex]

Now, we can make a substitution. Let u = x / 2. So, x = 2u. Substitute:

[tex]\displaystyle \frac{(1-\cos 2u)^2}{\sin ^22u}=\tan^2u[/tex]

Recall that cos(2u) = 1 - sin²(u). Hence:

[tex]\displaystyle \frac{(1-(1-2\sin^2u))^2}{\sin ^2 2u}=\tan^2u[/tex]

Simplify:

[tex]\displaystyle \frac{4\sin^4 u}{\sin ^2 2u}=\tan^2 u[/tex]

Recall that sin(2u) = 2sin(u)cos(u). Hence:

[tex]\displaystyle \frac{4\sin^4 u}{(2\sin u\cos u)^2}=\tan^2 u[/tex]

Square:

[tex]\displaystyle \frac{4\sin^4 u}{4\sin^2 u\cos ^2u}=\tan^2 u[/tex]

Cancel:

[tex]\displaystyle \frac{\sin ^2 u}{\cos ^2 u}=\tan ^2 u[/tex]

Since sin(u) / cos(u) = tan(u):

[tex]\displaystyle \left(\frac{\sin u}{\cos u}\right)^2=\tan^2u=\tan^2u[/tex]

We can substitute u back for x / 2:

[tex]\displaystyle \tan^2\left(\frac{x}{2}\right)= \tan^2\left(\frac{x}{2}\right)[/tex]

Hence proven.

The owner of a produce stand is selling baskets of peaches, priced by the kilogram. She rounded each measurements to the nearest 2 1 ​ start fraction, 1, divided by, 2, end fraction of a kilogram.How much heavier is the heaviest basket than the second heaviest basket?

Answers

Answer:

[tex]1\frac{1}{2}kg[/tex]

Step-by-step explanation:

Given

[tex]a = 6\frac{1}{2}[/tex] --- heaviest

[tex]b = 5[/tex] --- second heaviest

Required

The difference (d)

This is calculated as:

[tex]d = 6\frac{1}{2} - 5[/tex]

[tex]d = 1\frac{1}{2}[/tex]

What’s the answer to this ?

Answers

Answer:

a

Step-by-step explanation:

Answer:

I am pretty sure its B

Step-by-step explanation: not sure though

plsss help (on pic)
First will put brainliest

Answers

Answer:

7 over 2x-2

Step-by-step explanation:

Answer:

g^-1 •7

7g^-1

7•1/g

answer is 7/g

I hoped I helped!! :)

Draw the graph of y = 3x – 2 for –3 ≤ x ≤ 3

Answers

Answer:

In this case, we have a linear equation:

y = 3*x - 2

And we want to graph this in the interval  –3 ≤ x ≤ 3

Because this is a linear equation, to graph it we can just evaluate the equation in both extremes of the interval to find the two extremes of the graph.

Then we just need to connect these points with a segment, and that will be the graph of our equation.

Because the symbols used are: ≤

We need to graph the extremes with a black dot, which means that the point is included in the graph (would be different if we had -3 < x < 3)

The first extreme is when we have x = -3

y = 3*(-3) - 2 = -9 - 2 = -11

Then we have one extreme at (-3, -11)

The other is when x = 3

y = 3*3 - 2 = 9 - 2 = 7

Then the other extreme is at (3, 7)

Now we just need to draw these two points and connect them, an example of this can be seen in the image below:

CAN SOMEONE PLEASE HELP?!

Answers

Answer:

70in.

Step-by-step explanation:

Since the given formula for perimeter is [tex]2l + 2w[/tex], all that's needed is to fill in the blanks with the numbers they give us.

[tex]2l + 2w[/tex]                  (Fill in for given length and width)

[tex]2(20)+2(15)[/tex]         (Multiply)

[tex]40 + 30[/tex]                  (Add)

[tex]70[/tex]

It tells us that length ([tex]l[/tex]) is 20 and that width ([tex]w[/tex]) is 15. So all that we have to do is use the equation it gave us to solve the equation.

I hope this helped :)

Step-by-step explanation:

Hey there!

Here;

Length (l) = 20 in

Width (w) = 15 in

Perimeter(p) = ?

We have;

Perimeter of rectangle (p) = 2l + 2w

= 2(l+w)

= 2(20+15)

= 2*35

= 70 inches

Therefore, perimeter of rectangular picture is 70 inches.

Hope it helps!

y=−x+4
y=x−2

What is the solution for the system of equations?

Answers

Step-by-step explanation:

y=-x+4

y=x-2

adding both the equations we get

2y=2

:. y=1

and putting the value of y in equation first we get

x=3

Please help I’ll give brainliest

Answers

Answer:

B

Step-by-step explanation:  6 21  9 45

49 × 17 + 49 × 3

49 × (17 + 3)

49 × 20

The sum of a number and 3:

Answers

Answer:

x+3?

Step-by-step explanation:

honestly, there is not alot of information present here. so when a hear "a number" i think variable.... which would be set up as x+3

convert 25meter square into centimeter square

Answers

Answer:

250,000 cm squared

Step-by-step explanation:

Choose the correct simplification of the expression (x?y)?
Ох^4у^3
Ox^6y^6
Ох^4у^2
Oxy^4

Answers

C, multiply the powers in the parentheses by 2

Solve the following:
4x-3=2x+7
Thanks :)

Answers

Answer:

6x+10 i think is right(sorry if its not)

Answer:

5

Step-by-step explanation:

4x-3=2x+7

-2x -2x

2x-3=7

+3 +3

2x=10

2x/2x = x

10/2=5

x=5

What is the slope of the function?

Answers

Answer:

Write function:

y = 3x+4

The slope is what we time x by, 3!

Which of the following functions is graphed below?

Answers

Answer:

there are no functions her pls add them for an answer:)

Step-by-step explanation:

in one day a store sells 254 gallons of milk for a profit of -$0.17 each they also sell 51 half gallons of orange juice for a profit of 0.34 each what was the store's net profit for the day for these two items total

Answers

Answer:

-$25.84

Step-by-step explanation:

254* -0.17 = -$43.18 profit from milk

51 * .34 = $17.34 profit from OJ

-43.18 + 17.34 = -$25.84 profit total

Which of these is the algebraic expression for "4 times the sum of 2 and y?"
4 ⋅ 2 + y
4(2 + y)
2 + 4 ⋅ y
2(4 + y)

Answers

Answer:

[tex]4(2 + y)[/tex]

Step-by-step explanation:

"4 times the sum of 2 and y".

Hope it is helpful...

Answer:

The answer is 4(2+y)

Explanation: No 1 is 4 times two and add 1

No 3 is 2 plus 4 and multiply y

No 4 is 2 times 4 and adds 2 y

help please, try to explain it in steps for me if u can't that's fine, ty!

Answers

Answer:

B

Step-by-step explanation:

We are given that Expression One is:

[tex]2\cdot 10^x[/tex]

And Expression Two is:

[tex]4\cdot 10^{x+y}[/tex]

We are given that the value of Expression Two is 20,000 times greater than the value of Expression One. And we want to find the value of y. In other words:

[tex]4\cdot 10^{x+y}=20000(2\cdot 10^x)[/tex]

We can divide both sides by four:

[tex]10^{x+y}=10000\cdot 10^x[/tex]

Recall that:

[tex]x^a\cdot x^b=x^{a+b}[/tex]

Therefore:

[tex]10^x\cdot 10^y=10000\cdot 10^x[/tex]

Divide both sides by 10ˣ:

[tex]10^y=10000[/tex]

Solve for y:

[tex]\displaystyle y = \log_{10}10000 = 4[/tex]

Our answer is B.

Find the image of NPQ under the translation of (x, y) + (x + 8, y + 1).

АВС

DEF

KLM

GHJ

Answers

Answer:

Triangle KLM

Step-by-step explanation:

Firstly, we need to write the coordinates of triangle NPQ

We have this as;

(-7,-6) for N

(-4,-3) for P

(-4,-6) for Q

Now, we are going to use the given translation formula;

(x + 8, y + 1)

N’ will be (-7+ 8, -6 + 1) = (1,-5)

P’ will be (-4+ 8, -3+1) = (4,-2)

Q’ will be (-4+ 8, -6+1) = (4,-5)

Now, we need to find the triangle with the exact given transformation coordinates calculated above;

We have the triangle as;

KLM

With K as (1,-5) ; L as (4,-2) and ; M as (4,-5)

Other Questions
Mayumi is a 17-year-old whose mother sought psychological treatment for her because of Mayumi's feelings of anxiety. Mayumi and his mother both report that Mayumi always needs to be doing something but that all the activity causes her to feel very tired. In addition, no matter how much Mayumi eats, and she seems to eat a lot, she loses weight. At the beginning of the year, the local aquarium has 2,000 fish. Since then, the population has grown by 5% each month. Which expressions represent the number of fish, in thousands, in the aquarium 3 years later if the population continues growing at this rate? They are multiple choice What is the mass of an object that has an acceleration of 55 m/s^{2} when a net force of 20 N is applied? (round to the nearest tenth) Consider the following program in which the statements are in the incorrect order. Rearrange the statements so that the program prompts the user to input the height an the radius of the base of a cylinder and outputs the volume and surface area of the cylinder. Format the output to two decimal places.#include #include int main(){}double height;cout Can someone please help me with this. ANYONE! Identify the indicated protons in the following molecules as unrelated, homotopic, enantiotopic, or diastereotopic. a) Methyls a & b: _________ b) Ha & Hc: _________ chemical symbol for an atom of lithium Explain the structure of the nucleus in a living cell V sao ni hi ngh Ginev 1954 c k kt l s kt hp hi ha gia ngh thut nh v m ca ng ta A medical company tested a new drug on 100 people for possible sideeffects. This table shows the results.Side effects No side effectsTotalAdults64450Children203050Total2674100Compare the probability that an adult has side effects with the probabilitythat a child has side effects. Draw a conclusion based on your results. Find the area of the sector interms of pi.12210Area=[?]T Simplify -4 + (-3) + 6. A grande with a counter weight is shown in the figure. Find the horizontal distance between points A and D. PLZZZZZZZZZZZZZZZZZZZZZ HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEETask #2 EZ Coasters Emma and Zeke own an on-line business, EZ Coasters, that sells cork beverage coasters, which can be bought plain or with logos. The price for both types of coasters is $3.00 each. There is also a one-time set-up charge of $25 for coasters with a logo. 1) Write an equation describing the relationship between: a) The number of plain coasters bought and the cost of the coasters. b) The number of coasters with a logo bought and the price of the coasters. c) Is either coaster relationship proportional? Explain in writing how you know. d) Explain what the unit rate of the line described by each equation means in the context of the coasters. 2) EZ Sales also sells plain natural sandstone coasters for $4.00 each. a) Write the equation describing this relationship. b) Indicate whether or not it is a proportional relationship and explain why? c) Will the graph of this equation ever intersect the graph of the equations for either of the other two EZ Coasters? Explain in typing how you made your decision. Which of the following is most likely next in the series? can someone answer this please Dennis collected a total of 1712 stamps over the past 16 years At this rate how many stamps would he collect in 21 years What would happen to the weight of an ice cub if it melted? A) it would weigh a little more.B) it would weigh a lot less. C) it would weigh the same. D) it would weigh a lot more. 11. Cmo puedes responder? Qu llevaste contigo? *1.Yo llev la ropa y el perro conmigo2.Yo llevasia la ropa y el perro conmigo3.Yo llav la ropa y el perro conmigo Sales information for Tesla Inc. follows.Year Ended December 31 ($ thousands) 2018 2017 2016Automotive sales $17,631,522 $8,534,752 $5,589,007Automotive leasing 883,461 1,106,548 761,759Total automotive revenues 18,514,983 9,641,300 6,350,766Services and other 1,391,041 1,001,185 467,972Total automotive & services and other segment revenue 19,906,024 10,642,485 6,818,738Energy generation and storage segment revenue 1,555,244 1,116,266 181,394Total revenues $21,461,268 $11,758,751 $7,000,132Automotive sales revenue includes revenues related to sale of new Model S, Model X and Model 3 vehicles, including access to our Supercharger network, internet connectivity, Autopilot, full self-driving and over-the-air software updates.Automotive leasing revenue includes the amortization of revenue for Model S and Model X vehicles under direct lease agreements as well as those sold with resale value guarantees accounted for as operating leases under lease accounting. We do not yet offer leasing for Model 3 vehicles.Services and other revenue consists of non-warranty after-sales vehicle services, sales of used vehicles, sales of electric vehicle components and systems to other manufacturers, retail merchandise, and sales by our acquired subsidiaries to third party customers.Energy generation and storage revenues consists of the sale of solar energy systems and energy storage systems to residential, small commercial, and large commercial and utility grade customers.Compute the relative size of sales revenue from the four types of revenue Tesla discloses. (Hint: Scale each type of revenue by total revenue.)Round answers to the nearest whole percentage.