00:01
So we want to find the slope that passes between these two points.
00:06
So let's write down the basic equation for a linear function, y equals mx plus b.
00:11
What we're looking for right here is our m.
00:13
So the basic equation to find the slope between two points is y2 minus y1 all over x2 minus x1.
00:24
So we can make either of these are x1 y1 or our x2 y2.
00:32
I'm going to make the one on the right, the x2y2.
00:38
So x2y2, one of my left is going to be x1 y1.
00:46
So then let's just plug these numbers into this formula that we wrote down there.
00:49
So my y2, it's 3, it's going to be minus my y1, which is an 11, all over my x2, which is a negative 4, minus my x1, which is a 6.
01:02
So in this situation, it might have been helpful to switch these numbers around and actually make what i wrote in black, my x2, y2.
01:11
But as you'll see, it doesn't actually really matter.
01:14
It's really just a preference.
01:19
Let's do some math.
01:20
So 3 minus 11...