SOLUTION: find f(a + h) -f (a) for the following: f(x) = 4x + 5

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Question 295655: find f(a + h) -f (a) for the following: f(x) = 4x + 5
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
First compute f(a+h) and f(a). So f%28a%2Bh%29=4%28a%2Bh%29%2B5=4a%2B4h%2B5 and f%28a%29=4a%2B5


This means that f%28a%2Bh%29-f%28a%29=%284a%2B4h%2B5%29-%284a%2B5%29=4a%2B4h%2B5-4a-5=4h