Question

Which of the following points are solutions to the equation 3x - 4y - 8 = 12?
Select all that apply.
(0,-5)
(4,-2)
(8,2)
(-16,-17)
(-1,-8)
(-40,-34)

Answer 1

3x-4y-8=12

3x-4y=20

(0, -5). This means x=0, y=-5

Replace in equation:

3×0-4(-5)=20

20=20 yes, it applies.

Would you like to try in the same way for the remaining pairs?

Thanks. Good luck!