In August 2009 2009 2009 2009 , Usain Bolt ran 100 100 100 100 meters in 9.58 9.58 9.58 9, point, 58 seconds ( sec ) (\text{sec}) (sec) left parenthesis, start text, s, e, c, end text, right parenthesis , setting the world record at that time. There are approximately 1.094 1.094 1.094 1, point, 094 yards ( yd ) (\text{yd}) (yd) left parenthesis, start text, y, d, end text, right parenthesis in a meter. What was Usain Bolt's average speed in yards per second?

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?