Question

Medal for the correct answer!

Answer 1

If f(x) = log2 (x + 4), what is f−1(3)

Answer 2

Given the parent functions f(x) = log10 x and g(x) = 3x − 1, what is f(x) • g(x)?

Answer 3

\[\text{Is the first question: }f(x) = \log_2(x+4). ~~~~ \text{What is }f^{-1}(3) ~ ?~~~\\
\text{} \\
\text{If so, set f(x) = 3 and solve for x:}\\
\text{ } \\
3 = \log_2(x+4) \\

2^3 = x + 4 \\
8 = x + 4 \\
x = 8 - 4 = 4 \\
f^{-1}(3) = 4
\]