What if the 360 cubic-inch paving stones are 4 inches thick and any whole number length and width are possible? How many
different paving stones could be made? Suppose that the cost
of a paving stone is $2.50, plus $0.18 for every 4 cubic inches of
concrete. How much would each paving stone cost?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?