On a number line, the coordinates of X, Y, Z, and W are −7, −2, 2, and 7, respectively. Find the lengths of the two segments below. Then tell whether they are congruent. XY and ZW
FIRST WE ... subtract one value to the other to see how many valued we have in between -7 - (-2) = 5 7-2=5 Both of the lines XY AND ZW have 5 units or points in between them. Length = 5 units They are congruent since XY = ZW in length and essentially are the same line but at different points
