You can find the slope of a curve
m = lim(x->c) f(x) - f(c) ----------- x - c
m = lim(h->0) f(x+h) – f(x) ————- h
m = lim(h->0) f(x) – f(x-h) ————- h
m = lim(h->0) f(x+h) – f(x-h) ————– 2h
Wow… sorry everyone… my comment didnt post like I wanted it to. But those are other ways of finding derivatives.
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m = lim(h->0) f(x+h) – f(x)
————-
h
m = lim(h->0) f(x) – f(x-h)
————-
h
m = lim(h->0) f(x+h) – f(x-h)
————–
2h
Wow… sorry everyone… my comment didnt post like I wanted it to. But those are other ways of finding derivatives.