A swimmer dives off the edge of a cliff. The distance, d(t), in meters, the swimmer travels after
t seconds can be modeled by the function d(t)=0.5t^2. What is the average speed, in meters
per second, of the rock between 3 and 8 seconds after she dived? *

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?