Algebra Examples

$[- 4, 1] \cup [9, \infty)$

Step 1

The inequality form is $- 4 \leq x \leq 1$ or $x \geq 9$ .

$- 4 \leq x \leq 1$ or $x \geq 9$

Step 2

Use the inequality $- 4 \leq x \leq 1 or x \geq 9$ to build the set notation.

${x | - 4 \leq x \leq 1 or x \geq 9}$

Step 3