Quiz about Review Quadratics Unit

Question 1

What are the solutions? (Hint: Graph and look for x-intercepts using "Graph trace")

Accepted Answer

x = -6, -2

Answer

x = 6,2

Answer

x = 8, 12

Answer

x = 4, 4

Question 2

Write the following quadratic expression in completed square form...

x² - 6x + 10

Accepted Answer

(x - 3)² + 1

Answer

(x - 3)² - 1

Answer

(x - 3)² - 19

Answer

(x - 3)² + 4

Question 3

The path a baseball takes after it has been hit is modeled by the graph. What are the zeros in the quadratic function?

Accepted Answer

0 and 6

Answer

0 and 144

Answer

3 and 144

Answer

144 and 6

Question 4

Which equation matches the graph shown here?

Accepted Answer

y = -2(x + 4)² + 5

Answer

y = 2(x - 4)² + 5

Answer

y = -2(x - 4)² + 5

Answer

y = 2(x + 4)² + 5

Question 5

The x-intercepts of a quadratic equation are known as the _____.

Accepted Answer

Roots

Answer

Vertices

Answer

Squares

Answer

Formulas

Question 6

Question 6.

Accepted Answer

D.

Answer

A.

Answer

B.

Answer

C.

Question 7

Question 7.

Accepted Answer

J

Answer

F

Answer

G

Answer

H

Question 8

Question 8.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 9

The red line shown at x=3 is called the...

Accepted Answer

axis of symmetry

Answer

vertex

Answer

vertical line test

Answer

solutions

Question 10

Find the difference.

(3- 2x + 2x²) - (4x -5 +3x²)

Accepted Answer

-x²-6x + 8

Answer

x² + 6x + 8

Answer

5x² - 2x - 2

Answer

-2x² + 11x - 4

Question 11

What are the green dots called?

Accepted Answer

roots or x-intercepts

Answer

axis of symmetry

Answer

vertex

Answer

parabola

Question 12

What are the solutions? Hint: look at x-intercepts

Accepted Answer

x= -1 and x = 5

Answer

x= -5

Answer

(2,-9)

Answer

Cannot be determined

Question 13

$$y=-3(x+5)^2-4$$
Convert the equation from vertex form to standard form.

Accepted Answer

y = -3x²- 30x - 79

Answer

y = 9x²- 15x + 21

Answer

y = -3x²- 75x - 4

Answer

y = 9x²+ 90x + 221

Question 14

Convert the equation from vertex form to standard form.

Accepted Answer

$$y=4x^2+16x+8$$

Answer

$$y=4x^2+16x+16$$

Answer

$$y=16x^2+64x-8$$

Answer

$$y=16x^2+256x+8$$

Question 15

At what time did the diver reach their maximum height?

Accepted Answer

3 seconds

Answer

0 seconds

Answer

6 seconds

Answer

8 seconds

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