a. Use a dot product to prove that if is normal to a plane, then the equation of the plane is Ax + By + Cz = D, where D stands for a constant. b. Write two normal vectors for the plane 3x 7y + z = 5, pointing in opposite directions. c. Find the particular equation of the plane containing (6, 2, 1), with normal vector . Use the equation to find z for the point P(10, 20, z) on the plane. d. Find the particular equation of the plane perpendicular to the segment with endpoints (5, 7, 2) and (8, 13, 11) if the x-intercept of the plane is x = 1

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