Question

5. Which pair are solutions to the equation?

4xy + 8 = 36
(Points : 1)
(7, 1) and (3, 2)
(1, 7) and (4, 9)
(1, 7) and (7, 1)
(4, 9) and (3, 2)

Answer 1

@Nnesha

Answer 2

(1,7) and (7,1)

Answer 3

@thefluffmuncher.
All you need to do to test which pair are solutions of the equation you simply sub your "x " and "y" value into the equation and see if it equals 36.
So for example...
Option A has coordinates (7, 1) and (3, 2)
So we know x = 7 and y = 1 for the first point and now sub it into your equation so you get: 4*7*1 + 8 = which will give you 36 :)
Then you have to test the second point (3,2) so x = 3 and y =2. Sub it into the equation.
4*3*2 + 8 = 32 which DOES NOT = 36 so that's incorrect.
Then you simply use the same process for the other options :)