Question

For the following equation, tell which of the given ordered pairs are solutions. (Select all that apply.)
8x-7y=56

(0, -8)
(8, 8)
(0, 0)
(8, 1)
(7, 0)

Answer 1

you just need to sub your answer choices into the equation and see if it is true.
I will do the first two for you....

(1) (0,-8) x = 0 and y = -8
now sub
8x - 7y = 56
8(0) - 7(-8) = 56
56 = 56 (true..so this is a solution)

(2) (8,8) x = 8 and y = 8
sub
8x - 7y = 56
8(8) - 7(8) = 56
64 - 56 = 56
8 = 56 (false, so this is not a solution)

thats how you do it :) now you can finish

Answer 2

thank you