A nationwide study was done in which samples of drivers were asked their opinions about the reliability of their cars. The results of the survey were analyzed for differences among drivers of different models and makes of cars. What survey design is being used in this study

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?