How do you solve the system by graphing #x-3y=-3# and #x+3y=9#?

1 Answer
Mar 8, 2018

Answer:

If you rearrange both equations into #y=mx+b# format, you can then find the intersection point of the two lines to get the solution for x & y (3 & 2 respectively).

Explanation:

First, rearrange the equations:
#y=x/3+1#
#y=-x/3+3#

plotting these two equations gives you the following graph:
graph{(y-(-x/3+3))(y-(x/3+1))=0 [-1, 8, -1, 4]}

the intersection of which is your solution (3,2), or x=3, y=2