Question 135833
How do you solve this system of equations by graphing? y=-3x-2 y=x-2
:
You have to plot both both equations on the same graph. The solution is the x/y coordinates where the two lines intersect. 
:
Find the values for y when x = -4; x = 0; x = +4
y = -3x - 2
 x | y
-------
-4 |+10
 0 |-2
+4 |-14
Plot these points draw the line:
:
y = x - 2
 x | y
------
-4 |-6
 0 |-2
+4 |+2
:
Your graph should look like this:
{{{ graph( 300, 200, -6, 5, -16, 12, -3x-2, x-2) }}}
Note the point of intersection: x=0, y =-2; this is solution