AnswersCUSD Math 01 A 5.0Evaluating Functions

Evaluating Functions Answers

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What is the inverse of the function f(x) = 2x – 10?

A
h(x) = 2x – 5
B
h(x) = 2x + 5
C
h(x) = x – 5
Option C
D
h(x) = x + 5
Option D
2
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Which statement is true regarding the graphed functions?

Question illustration
A
f(4) = g(4)
B
f(4) = g(–2)
C
f(2) = g(–2)
D
f(–2) = g(–2)
3

What is the inverse of the function f(x) = 2x + 1?

A
h(x) = x –
Option A
B
h(x) = x +
Option B
C
h(x) = x – 2
Option C
D
h(x) = x + 2
Option D
4

If f(x) = 6x – 4, what is f(x) when x = 8?

A
2
B
16
C
44
D
52
5

The functions f(x) and g(x) are graphed.

Question illustration
A
f(0) = g(0) and f(2) = g(2)
B
f(2) = g(0) and f(0) = g(4)
C
f(2) = g(0) and f(4) = g(2)
D
f(2) = g(4) and f(1) = g(1)
6

Which represents the inverse of the function f(x) = 4x?

A
h(x) = x + 4
B
h(x) = x – 4
C
h(x) = x
Option C
D
h(x) = x
Option D
7

On a coordinate plane, a straight red line with a negative slope, labeled g of x, crosses the y-axis at (0, negative 7). A straight blue line with a positive slope, labeled f of x, crosses the x-axis at (negative 1, 0) and the y-axis at (0, 2). Both lines intersect at (negative 3, negative 4).

Question illustration
A
f(–3) = g(–4)
B
f(–4) = g(–3)
C
f(–3) = g(–3)
D
f(–4) = g(–4)
8

The table represents the function f(x).

Question illustration
A
–9
B
–1
C
1
D
9
9

Two functions are graphed on the coordinate plane.

Question illustration
A
f(4) = g(4) and f(0) = g(0)
B
f(–4) = g(–4) and f(0) = g(0)
C
f(–4) = g(–2) and f(4) = g(4)
D
f(0) = g(–4) and f(4) = g(–2)
10

If f(x) = + 8, what is f(x) when x = 10?

Question illustration
A
4
B
9
C
13
D
36

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