f(x) = x2 - x
f(x+h) = (x+h)2 - (x+h) = x2 + 2xh + h2 -x - h
f(x+h) - f(x) = x2 + 2xh + h2 -x - h - (x2 - x) = 2xh + h2 - h
(f(x+h) - f(x))/h = (2xh + h2 - h)/h = 2x + h - 1
Faris F.
asked • 01/07/19For the function f(x)=x^2-x find f(x+h)-f(x)\h
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