Question

Write a linear function f with f(0) = 2 and f(2)=4.
f(x) =

Answer 1

f(x) = x + 2

Explanation:

(0, 2)

(2, 4)

Slope m = (4 - 2) / (2 - 0) = 1

y - 2 = 1(x - 0) ⇔ y = f(x) = x + 2