MATH 1431 : Test 2 In Class Review Problems Fall 2012
Document Summary
Determine any inflection point of the above graph (x,y) = (_________, _________) 11: williams commuter air service realizes a monthly revenue represented by the following function, where r(x) is measured in dollars and the price charged per passenger is x dollars. 21000 and r(x) = -0. 04x2 + 800x: (a) find the profit function p, find the marginal profit function p ", find p"(3200). 13: pulsar also manufactures a series of 20-in. flat- tube digital televisions. 73000: (a) find the revenue function r and the profit function p, find marginal cost, marginal revenue, and. 17: find the first and second derivatives of the function, f(s) = (s-11)/(s+11, find the interval(s) where the function is increasing and the interval(s) where it is decreasing, f(x) = 1 / (x 10) 19: determine where the function is concave upward and where it is concave downward, f(x) = (x 2)(2/3)
