Question

Which statements are true about the ordered pair (7, 19) and the system of equations? {2x−y=−5 x+3y=22 Select each correct answer.

Answer 1

In this question, one point ( 7, 19 ) is given. And two linear equations are given. We shall check it one by one.

For   2x − y = −5 :

Putting x = 7 and y = 19 in this equation, we get

        2(7) - 19 = - 5

          14 - 19 = - 5

                 - 5 =  - 5    

So ( 7, 19 ) lies on this line.

For x + 3y =22 :

Putting x = 7 and y = 19 in this equation, we get

           7 + 3(19) = - 5

            7 + 57   = - 5

                 64    =  - 5    Not possible

So ( 7, 19 ) does not lie on this line.