SOLUTION: Given f(x)=-x-4, find f(a+1)

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Question 110834: Given f(x)=-x-4, find f(a+1)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=-x-4 Start with the given function

f%28a%2B1%29=-%28a%2B1%29-4 Plug in a%2B1


f%28a%2B1%29=-a-1-4 Distribute the negative

f%28a%2B1%29=-a-5 Simplify


So f%28a%2B1%29=-a-5