Inverse value table

Question

The function f is given below in a table:

x | f(x)

1 | 3

2 | -5

3 | 12

4 | 8

5 | 124

Write a table of values for f^-1. Enter values of x in increasing order

x | f^-1(x)

Answer 1

The numbers in the f(x) column become your new "x" column. You'll have to start with -5 and end with 124.

Then, in your f-inverse column, list the values that correspond with those numbers from the original x column.

For example, for f(x) you have the ordered pair ( 1, 3 ). f-inverse literally reverses them. For the inverse function, you will have the ordered pair ( 3 , 1 ). In your table, make sure that corresponding values are preserved. The first entry in your table then will be...

x | f-inv

-5 | 2

Can you come up with the rest on your own?