Which of the following eight expressions does not belong in the list? You may explore with numbers, but your final explanation MUST show the simplified variable expressions. a − b + c c − b + a c − (b − a) −b + a + c c +a − b a − (b − c) b − (c − a) a + c − b

5

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)