Below is a review of equations of lines.Forms of Linear EquationsAx + By = C Standard form of a linear equation. A and B are not both 0.y = mx + b Slopeintercept form of a linear equation. The slope is m,and the y-intercept is (0, b).y - y1 = m1x - x12 Pointslope form of a linear equation. The slope is m, and1x1 , y12 is a point on the line.y = c Horizontal line The slope is 0, and the y-intercept is (0, c).x = c Vertical line The slope is undefined and the x-intercept is (c, 0).Parallel and Perpendicular LinesNonvertical parallel lines have the same slope. The product of the slopes of twononvertical perpendicular lines is -1. Find the slope of the line containing each pair of points. (5, 2), (0, 5)

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