(1 point) Suppose that f(x) = 4x(1 - 4x)5 Find an equation for the tangent line to the graph off at x = 2. Tangent line: y = (1 point) The number x of stereo speakers a retail chain is willing to sell per week at a price of p dollars is given by x = 82vp +26 - 350. Find the supply and instantaneous rate of change of supply when the price is 75 dollars. Supply = Instantaneous rate of change of supply =