Question

Having problems with a Calculus question. See comments.

Answer 1

Concider a tangent line to the curve \[y=(3-(1/x))/(3+x)\] what is it's slope if we know that it's x-intercept is 4?

Is the question really asking for me to take the derivative, then plug in x=4?

Answer 2

I think they are asking for the x that satisfies
f(x) = f ' (x) * x + 4
where f(x) = your equation

Answer 3

Thanks, I'll try and work through that and see if my answer makes a little more sense.