Look at the picture.
Domain: -4 ≤ x ≤ 4
Range: -1 ≤ y ≤ 1
<h3>Answer: {x | -4 ≤ x ≤ 4}</h3>
Answer:

Step-by-step explanation:
Given

Required
Solve

Collect like terms


Take LCM


9 students.
4 studied 21 minutes,
2 studies 22 minutes,
1 studied 23 minutes,
and 2 studied 30 minutes.
Hope this helps you:)
7% because I just needed to answer a question
Factor into (x+4)(x+2). Set each equation equal to 0, x=-4,-2