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v.s
(a) If F(x) = 12x/(3 + x^2), find F '(3) and use it to find an equation of the tangent line to the curve y = 12x/(3 + x^2) at the point (3, 3). F '(3) = y(x) =
find the derivative using the quotient rule. that derivative will be your slope, so to find F'(3), plug in 3 where there is an x in your derivative. To find the tangent line, remember your point slope formula?
is it 12x^2-24x+36/(3+x^2)^2