SOLUTION: Given f(x) = 3x + 3, find f(a + 1). please help

Algebra ->  Graphs -> SOLUTION: Given f(x) = 3x + 3, find f(a + 1). please help      Log On


   

Question 126146: Given f(x) = 3x + 3, find f(a + 1).
please help
Answer by marcsam823(57) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute (a+1) everywhere you see an x and simplify:
1. f(a+1) = 3(a + 1) + 3
2. = 3a + 3 + 3
3. = 3a + 6
3a + 6 is your solution.