SOLUTION: Given f(x) = 3x + 3, find f(a + 1). Thank you very much!

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Question 111350: Given f(x) = 3x + 3, find f(a + 1).
Thank you very much!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+3x+%2B+3 Start with the given function


f%28a%2B1%29+=+3%28a%2B1%29+%2B+3 Plug in x=a+1. In other words, replace each x with a+1


f%28a%2B1%29+=+3a%2B3+%2B+3 Distribute


f%28a%2B1%29+=+3a%2B6 Combine like terms