Algebra Examples

$f^{- 1} (x) = \frac{8}{7} + \frac{x}{7}$

Step 1

The range is the set of all valid $y$ values. Use the graph to find the range.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${y | y \in ℝ}$

Step 2