Question

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

7x−5y=28 ?

Select each correct answer.


(7, 9)

(4, 10)

(−1, −7)

(−6, −14)

Answer 1

(-1,-7) and (-6,-14)

Explanation:

you sub in each x and y value into the equation and see if it works

(7×7)-(5×9)=4 not 28

(7×4)-(5×10)=-22 not 28

(7×-1)-(5×-7)=28

(7×-6)-(5×-14)=28

Answer 2

The third option. (-1, -7)