In Exercises 67 68, let be an equation of a conic section in an system. Let be the equation of the conic section in the rotated system. Use the coefficients and shown in the equation with the voice balloon pointing to on page 917, to prove the following relationships

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