f(3)= 2 f(16) =16 f(x) is the same thing as y so you can solve it the same way as any other equation. the only difference is when it has a number in the parentheses. if there is a number in the parentheses you will replace all of the x’s in the equation with that number. for example:
original problem problem with f(3) f(x)=2x*-3x-7 f(3)= 2(3*)-3(3)-7
