Question

Find the 5th term of a sequence represented by f(n) = 5n-2

Answer 1

Literally just plug in 5 for f(n) to get f(5)=5*5-2=25-2=23

Answer 2

Since you want to know what the 5th term, you substitute 5 for n and solve: f(n) = 5n-2 
          5n - 5
          5(5) - 5            25 - 5
 f(n) = 5