Question

Use the table to determine the linear relationship between x and f(x).

x f(x)
2 8
4 16
6 24
8 32



(1 point)
Write a function for the given table (above).

Answer 1

f(x) = 4x

Reason: slope = (16−8)/(4−2) = 4, and using (2,8): 8 = 4·2 + b → b = 0, so f(x) = 4x.