Quiz about Graphing Quadratics

Question 1

What is the green dot on the parabola called?

Accepted Answer

maximum/vertex

Answer

minumum

Answer

roots

Answer

zeros

Question 2

Does this parabola have a maximum or minimum?

Accepted Answer

Minimum

Answer

Maximum

Question 3

Find the y-intercept of f(x) = 2x²- 2x + 1

Accepted Answer

1

Answer

2

Answer

-2

Answer

-1

Question 4

What is the vertex of the quadratic function:
y = x² - 6x + 11?

Accepted Answer

(3,2)

Answer

(-3,-2)

Answer

(-3,2)

Answer

(3,-2)

Question 5

Determine the vertex of the parabola:
y = 5x²- 20x + 13

Accepted Answer

(2, -7)

Answer

(5, -7)

Answer

(-2, -7)

Answer

(-7, -2)

Question 6

The axis of symmetry line passes through which point?

Accepted Answer

vertex

Answer

y-intercept

Answer

any random point

Answer

none of these

Question 7

What are the x- intercepts of the equation $$y=x\left(x-4\right)$$ ?

Accepted Answer

x= 0 and x= 4

Answer

x= 0 and x= -4

Answer

y= 0

Answer

x= 2

Question 8

What is the vertex of the equation (x-2)(x-4)?

Accepted Answer

(3, -1)

Answer

(2, 4)

Answer

(0, 8)

Answer

(4, 2)

Question 9

Factor
n²-13n+40

Accepted Answer

(n-5)(n-8)

Answer

(n+5)(n-8)

Answer

(n-5)(n+8)

Answer

(n+6)(n+1)

Question 10

Write the equation of the parabola in factored form

Accepted Answer

y=(x+0)(x-4)

Answer

y=(x+0)(x+4)

Answer

y=x(x+4)

Answer

y=(x+3)(x-4)

Question 11

Write the equation of the parabola in standard form.

Accepted Answer

$$y=x^2-4x$$

Answer

y=x(x-4)

Answer

$$y=x^2-4x+2$$

Answer

$$y=x^2+4x$$

Question 12

Solve with the quadratic formula y = 5x²- 20x + 13

Accepted Answer

x=.82 and 3.18

Answer

x=1 and 3

Answer

x=20 and 13

Answer

x=-.82 and -3.18

Question 13

Solve the equation: $$2x^2-3x=7$$

Accepted Answer

x=-1.27 and x=2.77

Answer

x=3 and x=7

Answer

x=1.27 and -2.77

Answer

x=-3 and x=-7

Question 14

Consider the data: 12, 14, 15, 17, 20, 20, 21, 23, 24, 24, 26, 42

Which statistic is not correct

Accepted Answer

IQR=10

Answer

mean=21.5

Answer

Median= 20.5

Answer

Mode=20 and 24

Answer

Range=30

Question 15

Consider the data: 12, 14, 15, 17, 20, 20, 21, 23, 24, 24, 26, 42

Describe the shape

Accepted Answer

Right Skewed

Answer

Left Skewed

Answer

Symmetric

Answer

Rectangular

Question 16

Consider the data: 12, 14, 15, 17, 20, 20, 21, 23, 24, 24, 26, 42

Are there any outliers?

Accepted Answer

Yes, 42

Answer

No

Answer

Yes, 12 and 42

Answer

Can't tell

Question 17

Consider the data: 12, 14, 15, 17, 20, 20, 21, 23, 24, 24, 26, 42

What is the center and spread?

Accepted Answer

Median=20.5

IQR=8

Answer

Mean=21.5

Sx=7.8

Answer

Mean=21.5

IQR=8

Answer

Median=20.5

Sx=7.8

Question 18

$$2x^2-8x-24$$ has three correct ways to factor. Which of the following is NOT correct.

Accepted Answer

(x-8)(2x+3)

Answer

2(x-6)(x+2)

Answer

(2x-12)(x+2)

Answer

(x-6)(2x+4)

Question 19

Select the b value(s) that will make the following equation factorable: $$3x^2+bx-4$$

Select all that work

Accepted Answer

1

Accepted Answer

-11

Answer

3

Answer

12

Question 20

Solve: $$2x^2-5=45$$

Accepted Answer

x=5, x=-5

Answer

x=0, x=5

Answer

x=10, x=5

Answer

x=5

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