Precalculus Examples

$| - 5 | + 4$

Step 1

The absolute value is the distance between a number and zero. The distance between $- 5$ and $0$ is $5$ .

$5 + 4$

Step 2

Add $5$ and $4$ .

$9$

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