Without graphing, tell which statements are true for the graph of the function y = x2 + 2. i. all points on the graph are above the origin. ii. all points on the graph have positive x-values. iii. all points on the graph have positive y-values. statements and are true. statement is true because x^2 is non-negative for all values of x, so the minimum value of x^2 is 0. thus, the minimum y−value for the function is and the lowest point on the graph is (0, which is above the origin. statement is true because the lowest point on the graph is (0, so all other points have a y−value that is greater than and must be positive.

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.