The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 2 + t , y = 1 + 1 2 t, where x and y are measured in centimeters. the temperature function satisfies tx(2, 2) = 9 and ty(2, 2) = 3. how fast is the temperature rising on the bug's path after 2 seconds? (round your answer to two decimal places.)

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?