f(x)=2x, find f(3)

Question

been havin a lot of trouble wit my function notations and have gotten stuck on this one

Answer 1

Hi Ashely:

Here is the solution for your question.

 

We are given that f(x)=2x.

We wish to to find f(3).

Replace the x with 3.

 

f(3)=2(3)=6.