Question

How do you solve and graph the solution of `r-8<=7`?

Answer 1

You add 8 to both sides.

Explanation:

`r-8<=7 iff r<=15`
The graph is a disk of radius 15. With the points at a distamce of 15 from the origin included. graph{x^2+y^2<=15^2 [-57.5, 57.44, -28.77, 28.7]}