There are several of these problems-all of which are very closely related. If someone could please get me started it would help me out alot. The problems are as follows:...

The point lies on the curve . If is the point , find the slope of the secant line for the following values of :

If x=5.1, the slope of PQ is:

Ohh Yea one other thing the formula for the slope of secant line is:

Thanks!