Question

what does {x | x < -13 or x ≥ -9} represent?
all numbers greater than -13 or less than or equal to -9
all numbers greater than -13 or less than -9
all numbers less than -13 or less than -9
all numbers less than -13 or greater than or equal to -9

Explanation:

Step1: Analyze set - builder notation

The set $\{x|x < - 13\text{ or }x\geq - 9\}$ means that $x$ can take on values that satisfy either of the two inequalities. The first inequality $x < - 13$ represents all real - numbers less than - 13. The second inequality $x\geq - 9$ represents all real - numbers greater than or equal to - 9. So the set represents all numbers less than - 13 or greater than or equal to - 9.

Answer:

all numbers less than -13 or greater than or equal to -9