Answer:
First step: substitute 1 in for x
f(1)=3
Step-by-step explanation:
We want to find what f(x), or y is when x is equal to 1
Therefore, our first step would be to substitute 1 in for x
f(x)= 2x+1
f(1)= 2(1)+1
If we want to find the answer, continue to solve according to PEMDAS
Multiply first
f(1)=2+1
Add
f(1)=3
