Question

If f(x) = 3x+2, find f(f¹(14))

Answer 1

f(f¹(14)) = 134

Explanation:

Given :

• f(x) = 3x + 2

Find the value of f(14) :

• f(14) = 3(14) + 2
• f(14) = 42 + 2
• f(14) = 44

Therefore, f(f¹(14)) = f(44).

Solving :

• f(44) = 3(44) + 2
• f(44) = 132 + 2
• f(f¹(14)) = 134