# Evaluate inverse functions

Practice evaluating the inverse function of a function that is given either as a formula, or as a graph, or as a table of values.

### Problem

The table below shows some inputs and outputs of the invertible function f with domain all real numbers.
x5311809
f, left parenthesis, x, right parenthesis9minus, 2minus, 5minus, 1111
Find the following values:
f, start superscript, minus, 1, end superscript, left parenthesis, minus, 2, right parenthesis, equals
f, start superscript, minus, 1, end superscript, left parenthesis, 1, right parenthesis, equals