What is surface area? What is the equation for a trapezoid to find area?
How can we use what we know about other shapes if you don’t know the equation for a trapezoid?
What is the middle of the XY Coordinate axis called?
Which direction does the x-axis go?
Which direction does the y-axis go?
What do you know about the amount of points on the graph when making polygons on the XY graph?

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.