Which ordered pairs in the form (x, y) are solutions to the equation

7x – 5y = 28?

Choose all answers that are correct.

A.

(−6, −14)

B.

(−1, −7)

C.

(4, 10)

D.

(7, 9)

Question

Which ordered pairs in the form (x, y) are solutions to the equation 

7x – 5y = 28?

 

Choose all answers that are correct.
  
 
 

 
 

  

  A. 
 
(−6, −14)
   
   

 
 

  

  B. 
 
(−1, −7)
   
   

 
 

  

  C. 
 
(4, 10)
   
   

 
 

  

  D. 
 
(7, 9)

anonymous · Answer

@Dianegrace

anonymous · Answer

The easiest thing to do here is plug in each of the ordered pairs into the equation and see if they work. For example, a) (-6, -14), so plug in -6 for x and -14 for y in your equation 7x-5y=28. So 7(-6)-5(-14)=28 then solve. 7(-6)= -42 and 5(-14)= -70. -42-(-70)= 28. 28=28 and therefore A is an ordered pair that fits the equation. Do the same thing for each of the ordered pairs and you'll have your answer.

anonymous · Answer

ok thank you ans you that A was one of them?