Since the line is four units to the left of the y-axis, it is at −4 on the x-axis. The equation of this line is x = −4, answer choice
(C).
H
There are three ways to find the point of intersection: Graph the line, use combination, or use substitution. Often graphing is
the slowest method, unless you are already given the graph.
Line up the equations and see if you can eliminate a variable by adding or subtracting:
If you add the equations, y drops out, and you can solve for x.
This x-coordinate eliminates (G), (J), and (K). Next, substitute 2 for x in one of the equations to solve for y:
58.
