Question

Which points are on the graph of the equation - 3x + 6y + 5 = -7?

Answer 1

Answer:

C and E

Step-by-step explanation:

To solve this problem, let's plug in each coordinates into the equation.

A:

• $-3(-3) + 6(6) + 5 = -7$
• $9 + 36 + 5 = -7$
• $50 = -7$
• $50 \neq -7$
• A. cannot be the answer, as 50 does not equal -7.

B:

• $-3(-2) + 6(0)+5=-7$
• $6+0+5=-7$
• $11=-7$
• $11\neq -7$
• B. cannot be the answer, as 11 does not equal -7.

C:

• $-3(0) + 6(-2) + 5 = -7$
• $0 - 12 + 5 = -7$
• $-12 + 5 = -7$
• $-7 = -7$
• C. can be the answer, as -7 does equal -7.

D:

• $-3(6)+6(-3)+5=-7$
• $-18-18+5=-7$
• $-36+5=-7$
• $-31\neq -7$
• D. cannot be the answer, as -31 does not equal -7.

E:

• $-3(8) + 6(2) + 5 = -7$
• $-24 + 12 + 5 = -7$
• $-12 + 5 = -7$
• $-7 = -7$
• E. can be the answer, as -7 does equal -7.