The point P(5, 34) lies on the curve y values of z. If = 5.1, the slope of PQ is: and if z-5.01, the slope of PQ is: and if a 4.9, the slope of PQ is and if z 4.99, the slope of PQ is: Based on the above results, guess the slope of the tangent line to the curve at P(5, 34). +z+4. It Q is the point (2, +2+4), find the slope of the secant line PQ for the following