With detailed solution

3. Let m(x) be the slope of the tangent line to the curve y = 2x3 - 6x2 + 3x at the point (x, y). Find the instantaneous rate of change of m per unit change in x at the point (2, - 2). 4. Suppose a weight is to be held 10 feet below a horizontal line AB by a wire in the shape of Y. If the points A and B are 8 feet apart, what is the shortest total length of wire that can be used