Question

Which are solutions to y=x-4? Choose all correct answers.

(4,0), (3,-1), (6,3), (2,-4)

Answer 1

To answer such questions you should plug in. you plug in by replacing (x,y) with the values in the brackets, so y=x-4; let's try the solutions
A; 0=4-4=0 ; so A works
B; -1=3-4=-1 so B works
c; 3=6-4=2 which is false, so C doesn't work
D; -4=2-4=-2 which is false so D doesn't work.
Ciao!

Answer 2

Thank you :)