Question

What are the coordinates of the fourth vertex of parallelogram WXYZ?

Answer 1

let the 4th point be Z

since XY is a horizontal line,
WZ will also be horizontal!
agree?

Answer 2

Agree @hartnn

Answer 3

how long is XY ?
how many units?
the length of XY will be same as that of WZ :)

Answer 4

y co-ordinate of X and Y both is = -2
what is the x co-ordinate of X ?
what is the x co-ordinate of Y ?
their difference will be the distance XY :)

Answer 5

-4 @hartnn

Answer 6

not actually
X is at -3, Y is at 3

so the distance between them is 3-(-3) = 6

Answer 7

hence distance between WZ will also be 6
W is at -6 so, Z will be at 0 :)

Answer 8

so Z is at 3,0!