Write an expression, involving exponents, to represent shaded area, in square inches, of the diagram. Use the ^ button to represent exponents. (This button can be found on the "6" key of your keyboard. Press shift and 6 at the same time.)

Calculate the area of the shaded region: square units.

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?