Answer:
f(1) = 4
Step-by-step explanation:
Given:
[tex]\displaystyle \large{f(x)=x+3}[/tex]
Find f(1) by substituting x = 1 in the function f(x):
[tex]\displaystyle \large{f(1)=1+3}\\\displaystyle \large{f(1)=4}[/tex]
Hence, the solution is f(1) = 4