Question

Which ordered pair is a solution of the equation y = 3x?

A. (–2, –9)
B. (–8, –18)
C. (–8, –3)
D. (–10, –30)

Answer 1

All you have to do is take the first number and plug that in and see if comes out to be y. If you do that you should get that -10 x 3 = -30.

Answer 2

y=3x
(x,y)
input first number for x and see if get same numbe for y

easy, see if second number is 3 times second number
A. -2 tmes 3=-9? no
B. -8 times 3=-18? no
C. -8 times 3=-3? no
D -10 times 3=-30 yes

answer is D