Question

You are given the following 3 points of a square.
A (-1,-1)
B (-1,3)
C (3,3)
2
1
-5-4-3-2
012
45
X
-2
-3
4
Plot the points above in alphabetical order. Then, identify the fourth point needed to create a square.
Write the coordinates of the fourth point D of the square.
-5
D(

Answer 1

Plot in alphabetical order: A(-1,-1), B(-1,3), C(3,3).

AB = (0,4) and BC = (4,0), so the fourth vertex is D = A + BC = (-1,-1) + (4,0) = (3,-1).

Answer: D(3,-1)