Precalculus Examples

$- x^{2} - 6 x$

Step 1

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

Interval Notation:

$(- \infty, 9]$

Set-Builder Notation:

${y | y \leq 9}$

Step 2

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$