so i have this test coming up in class and in math i dont get the factor+ multiple thing... well i get the factor part but the multiples she didnt explain. so can someone pls explain it to me pls!!

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?