Si el poligono ABCD con A(-14,5 ; -7,5), B(-17,5 ; -11,5), C(-13,5 ; -12,5), y D(-15,5 ; -9,5) se refleja con respecto a la recta vertical que pasa por el punto (-1,3 ; 0) entonces el nuevo vertice C'(x;y) del polígono reflejado, debe tener un valor de y igual a:

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.