00:01
We're being asked to write the equation of a line in slope intercept form that passes through the two points negative 15 and 3 negative 3.
00:08
Well, remember, slope intercept form is y equals mx plus b, where m represents the slope of the line, and b represents the y intercept.
00:19
So to begin, we're going to find the slope of this line.
00:22
So to find the slope of a line out graphically, we're going to use rise over run.
00:27
So i'm going to start at the point negative 15, and we have to get to the point 3 negative 3.
00:33
Well, how many do we have to go down? we would have to go down 1, 2, 3, 4, 5, 6, 7, 8 units, and because we went down 8, that'll be negative 8, and how many to the right? well, 1, 2, 3, 4...