Write the first 4 terms of the sequence

Question

f(n)=15+3_n

What are the first 4 terms of this sequence?

Answer 1

f(n)=15+3n

Assuming first term begins when n=1 you have:

First Term: f(1)=15+3(1)=15+3=18

Second Term: f(2)=15+3(2)=15+6=21

Third Term: f(3)=15+3(3)=15+9=24

Fourth Term: f(4)=15+3(4)=15+12=27