Question

1. what is the solution set of ( x - 9 leq 0 )?

a. ( x geq -9 )

b. ( x geq 9 )

c. ( x leq -9 )

d. ( x leq 9 )

Explanation:

Step1: Isolate $x$ by adding 9

$x - 9 + 9 \leq 0 + 9$

Step2: Simplify both sides

$x \leq 9$

Answer:

d. $x \leq 9$