Question

Ifƒ(x ) = 3x + 1 and ƒ -1 = (x-1)/3, then ƒ(2) = A) 1/3 B) 1 C) 7

Answer 1

The problem gave us the equation for $f(x)$, which was $f(x) = 3x + 1$. To find $f(2)$, we can simply substitute 2 in for $x$, as shown below:

$f(2) = 3(2) + 1 = 7$

The answer is f(2) = 7.