Need !
is this a function? explain how you got your anwser

x -8 -2 -2 6 8
y -16 -8 0 4 12

What is solution for the following system of equations, 2x+8y=4 and x=-3y+5 1) x=14 y=-3 2) x=2 y=-3 3) x=-3 y=-3 4)x=12 y=5