00:01
In this problem, we're going to be finding the slope of point p and point q.
00:07
Point p's coordinates are a plus b and c, and q's coordinates are b plus c and a.
00:16
We're going to use the slope formula, which states that m equals our second y coordinate minus our first y coordinate, divided by our second x coordinate minus my first x coordinate.
00:30
So there are no numbers in any of these coordinates, but we're not going to let that scare us away in this problem.
00:38
So let's go ahead and let's put each set of coordinates in the correct place in the slope formula.
00:46
So m will equal our second y coordinate is going to be a.
00:51
So a minus and our first y coordinate is c.
00:57
On the bottom, let's do our x coordinates, our second x coordinate.
01:01
And i'm going to put these in parentheses for right now.
01:04
It will be b plus c minus my first x coordinate is a plus b.
01:18
Now top with our y coordinates is simplified.
01:22
So let's work a little bit on our x coordinates.
01:25
Right here outside this parentheses we have a subtraction sign...