Question

Which equation could have been used to create this function table?

x y
2 4
6 12
10 20
12 24
14 28



A. y = 2x


B. y = 4x


C. y = x + 4


D. y = x + 2

Answer 1

Among other approaches, finding the actual equation of the line thru these points is workable:

6 12
10 20
20-12
slope m = ---------- = 8/4 = 2 The only answer choice that matches is A:
10-6 y = 2x