Which is a solution to the equation 6x + y = –4?

A.
(2, 8)

B.

(1, –10)

C.

(2, –8)

D.
(1, 2)

Question

Which is a solution to the equation 6x + y = –4?
  
 
 

 
 

  

  A. 
  (2, 8)   
   

 
 

  

  B. 
 
(1, –10)
   
   

 
 

  

  C. 
 
(2, –8)
   
   

 
 

  

  D. 
  (1, 2)

anonymous · Answer

@Shay17

matt101 · Answer

To find the answer, sub in the x-coordinate of each point into your equation, and see if the y-coordinate you calculate matches the one in the point.

For instance, for the first point, (2,8), sub in the 2 for x in your equation:

6x + y = –4
6(2) + y = -4
12 + y = -4
y = -16

So for this equation, when x = 2, y = -16 and not 8. Therefore (A) cannot be the right answer. Try this for the other points and see which one works!