Question

How do you solve the system `x - y = -2` and `3x - y = 0` by graphing?

Answer 1

x=1; y=3.

Explanation:

`y=x+2` and `y=3*x` must be drawn.

Where they cross is the solution.

graph{(y - x - 2)(y - 3x) = 0 [-10, 10, -5, 6]}