How do you use the graph to state the solution for the system #x -y = 4# (line a) and #x + y = 4# (line b)?
1 Answer
Apr 1, 2015
Find two points on the line for each of the equations (the intercepts are often a good choice)
line a:
line b:
Draw the two lines using their respective pairs of points
and
note where the lines intersect.
