Posted by **Chelsea** on Friday, October 22, 2010 at 8:13pm.

Differentiate.

y = (cx)/(1 + cx)

g(x) = 1 + cx

f(x) = cx

Using the quotient rule:

y' = [(1 + cx)(f') - (cx)(g')]/(1 + cx)^2

How do you find f' and g' when there is more than one variable? Having a C and an X?

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