How do you solve the system #2x + 3y = -6 # and #x - 3y = 6# by graphing?
1 Answer
May 20, 2017
↓See below↓
Explanation:
A linear graph needs to have the
To isolate
We have our first graph ↓
graph{y=-2/3x-2 [-10, 10, -5, 5]}
To graph our second equation, let's subtract
Then, divide by
We have our second graph ↓
graph{y=x/3+2 [-10, 10, -5, 5]}
Combine the two graphs.
The point where the 2 graphs intersect is the solution to this system of equations.
graph{(y-x/3-2)(y+2/3x+2)=0}