Solve the system of equations by graphing

Question

3x-y=4

2x+y=-4

 

Use the graphing tool to graph the system.

 

What is the solution of the system of equations? Select the correct choice below and, if necessary, fill in the answer box o complete your choice.

 

A. __ (Type ordered pair)

B. The system of equations has infinitely many solutions.

C. The system of equations has no solution.

Answer 1

A. (0,-4) is the unique solution

if you graph them, the 1st is an upward sloping line

the 2nd is a downward sloping line. they intersect at the point (0,-4) the y intercept of both lines