Question

Solve the system y = x + 2 and y = -x - 3 by using graph paper or graphing technology.

Answer 1

Set y=x+2 and y=-x-3 equal to each other so:

x+2=-x+3
2x = 1
x = 1/2

Plug x=1/2 back into one of the equations, it doesn't matter which
y = 1/2 + 2
y = 1/2 + 4/2
y = 5/2