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A2.20.f

Compare the graphs of inverse functions and the relationships between their key features, including but not limited to quadratic, square root, exponential, and logarithmic functions.

Example Problems

The following table shows a few inputs and outputs of

h(x)

.

x	h(x)
0	-8
9	-6
19	-1
28	4
37	9
47	13

What is the value of

h^{-1}(9)

?

The following table shows a few inputs and outputs of r(x).

x	-30	-20	-10	-2	7	17
r(x)	-10	-12	-6	-20	1	-1

What is the value of

r^{-1}(-20)

?

The following table shows a few inputs and outputs of

z(x)

.

x	z(x)
-22	-30
-16	-22
-11	-17
-5	-9
0	-2
6	4

What is the value of

z^{-1}(-9)

?

Khan Academy Resources

Intro to inverse functions Inverse functions: graphs and tables Evaluate inverse functions Intro to inverse functions Graphing the inverse of a linear function Reading inverse values from a graph Reading inverse values from a table Inputs & outputs of inverse functions

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