Solve the system by graphing

-3x-y=-10.

4x-4y=8

Answers to choose from are:

A. (-1,3)

B. (3,-1)

C. (1,3)

D. (3,1)

-3x - y = - 10

4x - 4y = 8

To make these easier to graph, convert them to slope-intercept form by isolating y on the left side:

-3x - y = - 10

-y = 3x - 10

y = - 3x + 10

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4x - 4y = 8

-4y = - 4x + 8

y = x - 2

Now I can graph the equations

y = - 3x + 10

y = x - 2

Answer:

D. (3, 1)