Analyzing Functional Relationships — Unit test

Question 1

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

Revolt · Accepted Answer

121

Question 2

The function f(x) = –3x2 + 36x – 119 written in vertex form is f(x) = –3(x – 6)2 – 11. Which statements are true about the graph of f(x)? Select three options.

Question 3

What is the axis of symmetry of h(x) = 6x2 − 60x + 147?

Revolt · Accepted Answer

x = 5

Question 4

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 5

The graph of the function f(x) = (x + 2)(x − 4) is shown.

Revolt · Accepted Answer

all real values of x where 1 < x < 4

Question 6

Given the function f(x) = −2x2 + 4x − 7, find f(−4).

Revolt · Accepted Answer

−55

Question 7

Which equation, when graphed, has x-intercepts at (8, 0) and (−2, 0) and a y-intercept at (0, −48)?

Revolt · Accepted Answer

f(x) = 3(x − 8)(x + 2)

Question 8

On a coordinate plane, a parabola opens up. It goes through (negative 3.25, 5), has a vertex of (1.7, negative 2.75), and goes through (6.25, 5). Solid circles appear on the parabola at (negative 3, 4), (0, negative 2), (1.5, negative 2.75), (3, negative 2), (6, 4).

Revolt · Accepted Answer

2

Question 9

Which is one of the transformations applied to the graph of f(x) = x2 to change it into the graph of g(x) = 9x2 – 36x?

Revolt · Accepted Answer

The graph of f(x) = x2 is shifted down 36 units.

Question 10

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

Revolt · Accepted Answer

(4, 0) and (−9, 0)

Analyzing Functional Relationships — Unit test Answers

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