just plug and chug
f(a+h)-f(a) = (a+h+3)-(a+3) = h
so,
f(a+h)-f(a)
------------ = h/h = 1
h
Let f (x) = x + 3. Find and simplify :
f(a+h)−f(a) /h
2 answers
I'm sorry its supposed to be the square root of x+3, would it end up being the same ??