Math Unit Test Review

Given the function f(x) = −2x2 + 4x − 7, find f(−4). −55 −7 9 25

A

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

A

Which type of function is represented by the table of values below? x y 1 4 2 16 3 64 4 256 5 1,024

A exponential

The graph of the function f(x) = −3x2 − 3x + 6 is shown. Which statements describe the graph? Select three options.

ABC

From the equation, find the axis of symmetry of the parabola. Y=2x^2 + 4x -1

B

The graph of an exponential function and a linear function are shown below.Exponential Linear Which statement is true about the functions?

B

Use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following equation. Y=x^2+x+6

B

What are the x-intercepts of the graph of the function f(x) = x2 + 5x − 36? (−4, 0) and (9, 0) (4, 0) and (−9, 0) (−3, 0) and (12, 0) (3, 0) and (−12, 0

B

Which rule can be used to describe the growth of the y-values of the function over each interval from to ?

B

Part of the graph of the function f(x) = (x - 1)(x + 7) is shown below. Which statements about the function are true? Select three options.

BCD

The graph of the function f(x) = (x + 2)(x − 4) is shown. Which describes all of the values for which the graph is negative and increasing?

C

Which function has a vertex on the y-axis? f(x) = (x - 2)2 f(x) = x(x + 2) f(x) = (x - 2)(x + 2) f(x) = (x + 1)(x - 2)

C

Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y = x^2 + 2 x - 5

D

What is the y-value of the vertex of the function f(x)=−(x−3)(x+11)? −8 −4 33 49

D

Which is f(6) for the quadratic function graphed? -2 -0.5 1.5 4

D