Question

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

Answer 1

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

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