Inverse of a Function Answers

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What are the additive and multiplicative inverses of h(x) = x – 24?

A
additive inverse: j(x) = x + 24; multiplicative inverse: k(x) =
Option A
B
additive inverse: j(x) = ; multiplicative inverse: k(x) = –x + 24
Option B
C
additive inverse: j(x) = –x + 24; multiplicative inverse: k(x) =
Option C
D
additive inverse: j(x) = –x + 24; multiplicative inverse: k(x) = x + 24
3

For the constant function v(x) = 1, which statement describes the additive and multiplicative inverses?

A
Both inverses are equal to v(x).
B
Neither inverse is equal to v(x).
C
The additive inverse is equal to v(x), but the multiplicative inverse is not.
D
The multiplicative inverse is equal to v(x), but the additive inverse is not.
5

The table shows several points for function f(x).Which statement correctly identifies a point on the graph of f–1(x)?

Question illustration
A
The point (4, –7) is on the graph of f(x), so the point (7, –4) will be on the graph of f–1(x).
B
The point (–2, 15) is on the graph of f(x), so the point (2, –15) will be on the graph of f–1(x).
C
The point (–4, 19) is on the graph of f(x), so the point (–4, –19) will be on the graph of f–1(x).
D
The point (10, –14) is on the graph of f(x), so the point (–14, 10) will be on the graph of f–1(x).
6

For x > 3, values of the function f(x) = –(x – 3)2(x + 2) are negative. On this same interval, which statement correctly describes the values of the additive and multiplicative inverses?

A
Both the additive inverse and the multiplicative inverse are positive.
B
Both the additive inverse and the multiplicative inverse are negative.
C
The additive inverse is positive, while the multiplicative inverse is negative.
D
The additive inverse is negative, while the multiplicative inverse is positive.
7

Which statement describes how the graph of a function, h(x), and its inverse, h‒1(x), are related?

A
The line y = ‒x is the perpendicular bisector of each segment connecting a point on h(x) to the corresponding point on h‒1(x).
B
The line y = x is the perpendicular bisector of each segment connecting a point on h(x) to the corresponding point on h‒1(x).
C
The graph of the inverse of h(x) is a reflection over the line y = 0 of the graph of h(x).
D
The y-axis is the perpendicular bisector of each segment connecting a point on h(x) to the corresponding point on h‒1(x).
8

Consider the function f(x) = x2 – 331. Chivonne claims a domain restriction x ≥ 0 produces the inverse function f–1(x) = .Which statement describes whether Chivonne is correct?

Question illustration
A
The expression for f–1(x) is correct, but the domain restriction is not.
B
The domain restriction is correct, but the expression for f–1(x) is not.
C
Both the expression for f–1(x) and the domain restriction are correct.
D
Neither the domain restriction nor the expression for f–1(x) is correct.
9

Given r(x) = , which represents a domain restriction on r(x) and the corresponding inverse function?

Question illustration
A
x > 4; r–1(x) =
Option A
B
x > 4; r–1(x) =
Option B
C
x > –4; r–1(x) =
Option C
D
x > –4; r–1(x) =
Option D
10

Review the graph of function g(x).

Question illustration
A
(–3, 0)
B
(0, –3)
C
(2, 3)
D
(3, 4)

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