Question

How do you solve and graph `5z<-90`?

Answer 1

`z<-90`; Graph `y=-90` and `y=5z` on the same graph and shade below -90 and to the left of `5z`.

Explanation:

Divide both sides by 5, giving

`z<-18`

You can graph this by first graphing -90 and then the line `y=5z`. Then shade all the spaces below -90 and the left of `y=5z`. It would look like this: