Unit Test

Question 1

What are the solutions to m2 – 9 = 0?

Revolt · Accepted Answer

m = –3 and m = 3

Question 2

What is the y-value of the vertex of the function f(x)=−(x+8)(x−14)?

Revolt · Accepted Answer

121

Question 3

The function g(x) is defined as g(x) = 6x2 + 23x – 4. When does g(x) = 0?

Revolt · Accepted Answer

x = –4 or x =

Question 4

What are the x-intercepts of the graph of the function f(x) = x2 + 5x − 36?

Revolt · Accepted Answer

(4, 0) and (−9, 0)

Question 5

The function f(x) = x2 is translated 7 units to the left and 3 units down to form the function g(x). Which represents g(x)?

Revolt · Accepted Answer

g(x) = (x + 7)2 − 3

Question 6

Which is the graph of the function f(x) = x2 + 2x + 3?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/evresources/3109/3109-09/3109-09-02/3109-09-02-assessment/3109-09-02-22a.png

Question 7

Which function has real zeros at x = −10 and x = −6?

Revolt · Accepted Answer

f(x) = x2 + 16x + 60

Question 8

The function f(x) = –x2 – 4x + 5 is shown on the graph.

Revolt · Accepted Answer

The range of the function is all real numbers less than or equal to 9.

Question 9

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = –6. Which function could Heather be writing?

Revolt · Accepted Answer

f(x) = –x2 – 12x – 36

Question 10

Solve x2 – 8x = 20 by completing the square. Which is the solution set of the equation?

Revolt · Accepted Answer

{–2, 10}

Unit Test Answers

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