Question

1: which ordered pair is the solution of the equation y = 3x?
A: (-2,-9)
B: (-8,-18)
C: (-8,-3)
D: (-10,-30)

2: which ordered pair is the solution of the equation y=-9+4
A: (10,-86)
B: (-4,58)
C: (6,-41)
D: (-6,57)

Answer 1

well, did you try the points?
Does -9 = 3(-2) ?? No.
So try the others till you find the one which works in the equation.

Answer 2

-30 = 3 * -10

I think you mean
y = -9 x + 4
if x = 10
y = -90 + 4 = -86 done