T + 8:44 982180= VPN @ 31% K +: 0 Short Answer 22. A football's path is represented by the function h(1) = -4.91 + 10t + 2, where h is its height, in metres, after t seconds.. Find the average rate of change of the football's height between 0 s and I s. (A: /3) 23. The demand function for a bottle of hand lotion is p(x) = 0.78 + 0.0003x, where x is the number of bottles sold and p is the price, in dollars. The cost function is C(x) = 480-0.32x + 0.0005x . Find the marginal profit when 700 bottles of hand lotion are sold. (A: /3) 24. For the function f(x) = x - 4x + 6, find the local extrema. Then, classify the local extrema using the second derivative test. (K: /3)(A: /1) 25. Find the equation of the tangent to the curve y = 2 sinx + sin'x at the point where x = It