Question

Which step is not necessary when solving this system of equations by graphing? 3x−y=4, x+y=−4

a) Identify the point of intersection
b) Choose a method to graph the equations
c) Determine the shaded area for each line
d) Write the solution as an ordered pair

Answer 1

The step that is not necessary when solving this system of equations by graphing is determining the shaded area for each line.

Step-by-step explanation:

The step that is not necessary when solving this system of equations by graphing is c) Determine the shaded area for each line.

When solving a system of equations by graphing, you do not need to determine the shaded area for each line. The point of intersection and the solution as an ordered pair are the important steps in solving the system of equations by graphing.