9. Which set of coordinates describes a function? * 10 points A) {(-5, -1), (-3, -3), (-1, -5), (-5, -7)} B) {(6, 3), (4, 5), (2, 3), (0, 5)} C) {(4, -3), (-4, -6), (4, 3), (-4, 6)} D) {(2, 4), (2, -4), (4, 8), (6, 2)}

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.