Question

Three vertices of a rectangle are given. Find the coordinates of the fourth vertex.

(2, 5), (6, 1), (4, –1)

A.
(0, 2)

B.
(0, 3)

C.
(1, 3)

D.
(1, 4)

Answer 1

Drawing a picture is super helpful here.

Answer 2

You will see that the vector from the fourth vertex to (4,-1) is the same as the vector from (2,5) to (6,1).

Answer 3

You should be able to see/calculate that that vector goes right 4 and down 4.