00:01
To classify the quadrilateral, we'd want to know the slopes and we'd want to know the length.
00:05
So the slope of mn, you can use points m and n into the slope formula, which is the difference of your y coordinates over the difference of your x coordinates.
00:20
Negative 7 and negative 3.
00:21
So it would be adding 3.
00:25
So that would be negative 3 4ths.
00:33
Negative 4, so it would actually be positive 3 4ths.
00:40
The slope of an o, y2 minus y1 would be negative 10 plus 2, and negative 1 minus negative 7 or negative 1 plus 7.
00:53
That would be negative 8 over 6 or negative 4 thirds.
01:03
The slope of o .p, y2 minus y1 over x2 minus x1.
01:18
That would be three -fourths and a slope of p .m.
01:24
Y2 minus y1 over x2 minus x1.
01:29
That would be negative 8 over negative or negative 8 over 6 or negative 4 thirds.
01:38
So the opposite sides are parallel because they have the same slopes...