00:01
For this problem, we have been given two points, and our goal is to find the slope of the line passing through these points.
00:08
So let's go back and look at the definition of slope.
00:12
Slope is rise over run.
00:16
Well, rise is how fast you go up and down, so that's looking at the change in y.
00:24
Run is your movement from side to side.
00:27
So there we're looking at the change in x.
00:31
Well, mathematically, when we're talking about change, if i'm looking at how two numbers change, i'm looking at their difference.
00:37
So that's a subtraction problem.
00:39
So i'm going to subtract my y values on top, and i subtract my x values on the bottom.
00:45
It doesn't matter which point you make point one and which one you make point two, as long as you're consistent between the numerator denominator.
00:52
You always want to start with the values from the same point on the top and bottom.
00:57
So for the points we've been given, let's just call the first point, point one...