Write the sentences as a system of inequalities in two variables. Then graph the system.The sum of the x-variable and the y-variable is at most -4. The y-variable added to the product of 3 and the x-variable does not exceed 12.
A. x + y > -4
x + 3y > 12
B. x + y ? -4
x + 3y ? 12
C. x + y ? -4
3x + y ? 12
D. x + y ? -4
3x + y ? 12
Answer: C
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