Which ordered pairs are solutions to the equation?

y = 3x – 4

A.
(11, 5) and (2, 2)

B.
(5, 11) and (3, 2)

C.
(5, 11) and (2, 3)

D.
(5, 11) and (2, 2)

Question

Which ordered pairs are solutions to the equation? 
 
y = 3x – 4
 
 A.
(11, 5) and (2, 2)
 
 B.
(5, 11) and (3, 2)
 
 C.
(5, 11) and (2, 3)
 
 D.
(5, 11) and (2, 2)

jim_thompson5910 · Answer

Let's check (11,5)

(x,y) = (11,5) which means x = 11 and y = 5


y = 3x – 4

5 = 3*11 – 4 ... replace x with 11, replace y with 5

5 = 33 - 4

5 = 29


The equation 5 = 29 is false. Therefore, (11,5) is NOT a solution to the equation y = 3x-4

jim_thompson5910 · Answer

Since (11,5) is NOT a solution, we can rule out choice A.

jim_thompson5910 · Answer

You need to check both points, for each choice, to see which make the equation true. Both need to make the equation true.

anonymous · Answer

thanks

jim_thompson5910 · Answer

you're welcome