SOLUTION: the coordinates of three vertices of a rectangle are (3,1), (-2,1), and (-2,3). what are the fourth vertex

Question 586491: the coordinates of three vertices of a rectangle are (3,1), (-2,1), and (-2,3). what are the fourth vertex
Answer by tw23279(14) (Show Source): You can put this solution on YOUR website!
Draw it out!
The answer is (3,3).
You can do it by looking at it.
Since we know that horizontal slope, by definition, is perpendicular to vertical slope. (0 vs undefined!)
So you know.. the intersection between the horizontal and vertical line created, if you draw them, they would reach (3,3)
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