Question

f(x) = 3x + 13; g(x) = 3x - 1
Find f(g(x)).
- help :(

Answer 1

Answer:

f[g(x)] = 9x + 10

Step-by-step explanation:

f[g(x)] means to replace the x of function f(x) with function g(x)

Given:

• f(x) = 3x + 13
• g(x) = 3x - 1

Therefore:

f[g(x)] = 3[g(x)] + 13

         = 3(3x - 1) + 13

          = 9x - 3 + 13

          = 9x + 10

Answer 2

Answer - f (3x - 1) = 9x + 10

Explanation - set up the composite function and evaluate