difference quotient of radical 2x?

Question

its precalc so it needs to be done out by F(x+h)- f(x) / h

Answer 1

sure.
remind me later, 'mkay?

Answer 2

limit h tending to 0
f(x+h)-f(x)/h
=limit x-->0rt{2(x+h)}-rt{2x}/h
now use the binomial expansion and simplify

Answer 3

f(x) = x^.5
f(x+h) = (x+h)^.5
[f(x+h)-f(x)]/h= [(x+h)^.5-x^.5]/h