Question

What rule changes the input numbers to output numbers?

A) x - 3

B) 2x - 4

C) 3x - 5

D) 4x - 6

Answer 1

sub all the values in as if input is the x value
A) 1-3 = -2 works
2-3 = -1 doesnt work
B) 2-4 = -2 works
4-4 = 0 doesnt work
C) 3-5 = -2 works
6-5 = 1 works
9-5 = 4 works
12-5 = 7 works
hence C is the answer 3x - 5