Question

Given the function f(x) = 4 – 2x, find f(3r – 1).

Answer 1

f(3r - 1) = -6r + 6

Explanation:

To find f(3r - 1), we substitute 3r - 1 for x in the expression for f(x) and simplify:

f(x) = 4 - 2x

f(3r - 1) = 4 - 2(3r - 1)

= 4 - 6r + 2

= -6r + 6

So, f(3r - 1) = -6r + 6.