MATH 220 Midterm: MATH 220 KSU s17Exam 3s
15 Feb 2019
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Please make sure that your cell phone is turned o . You will have 75 minutes to complete the exam. Unless instructed otherwise, show your work on each problem. 100: the function f (x) and its rst and second derivatives are: f (x) = x2 x2 + 3 f (x) = 6x (x2 + 3)2 f (x) = 18(x2 1) (x2 + 3)3. Find the information below about f (x), and use it to sketch the graph of f (x). 4: (10 points) find the absolute maximum and absolute minimum of w(x) = 2x3 9x2 + 3 on [ 1, 1]. 2: (3 points each) y = v (x) is plotted above. 4x2 + 7x: (10 points) let p(x) = 100 2x be the price in dollars per cake a bakery can charge if it sells x cakes. What cake price will maximize revenue? (recall, revenue is the total amount of money received from the sale of x cakes.
