Question

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

Select all that apply.
A.
(-3, 6)
B.
(-2,0)
Otomo
C.
(0, -2)
D. (6,-3)
E. (8,2)
estes
S.

Answer 1

C and E

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 \\eq -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\\eq -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\\eq -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.