Let A be the area under the graph of an increasing continuous function f from a to b, and let Ln and Rn be the approximations to A with n subintervals using left and right endpoints, respectively. (a) How are A, Ln, and Rn related? (b) Show that Rn 2 Ln b 2 a n f fsbd 2 fsadg Then draw a diagram to illustrate this equation by showing that the n rectangles representing Rn 2 Ln can be reassembled to form a single rectangle whose area is the right side of the equation. (c) Deduce that Rn 2 A , b 2 a n f fsbd 2 fsadg

Advertising Test 3 Study Guide: Key Terms: Chapter 12: Media Planning Essentials • Deal proneness: the ease with which a consumer can get a deal, know what a good deal is, operate with knowledge of what a good price would be, and know a seller’s cost • Price/cost transparency: ease with which consumers can find out the price of a product and the seller’s cost • Above-the-line promotion: traditional measured media advertising; any message broadcast to the public through conventional means such as TV, internet, radio, and magazines • Measured media: media that are closely measured to determine advertising costs and effectiveness; TV, radio, newspaper, magazines and outdoor media • Belo