Practice!

Sample Problem

Plug in each of the points below to see which one is a solution to the system of equations

y = x + 1

y = -x – 5

Solution

After plugging in all the points, we find that (-3, -2) is the only solution to both equations, so it is the solution to this system of equations

-2 = -3 + 1     

-2 = -2

and

-2 = -(-3) – 5

-2 = 3 – 5

-2 = -2