Question

Which number line represents the solution set for the inequality 3x <-9?

0
-4
-3
-2
-1
0
1
2
3
4
0
A+ +
-4 -3 -2 -1
0
1
2
3
4
-4 -3 -2 -1 0
1
2
3
4
At
-4 -3 -2 -1 0
1
2
3
4

Answer 1

We have the following inequality

`3x < -9`

First we simplify the inequality by dividing both sides by
`-3`

`x < -3`

So
`x\in(-\infty,-3)` which means x is any number that is smaller than -3 non inclusive.

Hope this helps.