00:01
In this problem, we're being asked to write the equation of a line in point slope form that passes through these two given points.
00:06
Well, remember, point slope form is y minus y sub 1 equals m times x minus x sub 1.
00:13
So to write an equation in point slope form, we need our slope, which is represented by m, and we need a point on our line, which is represented by x sub 1 and y sub 1, which we do have.
00:23
We have two ordered pairs.
00:24
So we just have to find the slope.
00:26
To do this, we're going to use our slope formula, which is m equals, y sub 2 minus y sub 1 divided by x sub 2 minus x sub 1.
00:35
So let's go back to our ordered pairs and label them.
00:38
So from the first order pair, 1 half is our x sub 1 value and negative 1 is our y sub 1 value.
00:44
And from the second order pair, 3 will be our x sub 2 value and 1 half will be our y sub 2 value.
00:49
So let's substitute these values into our equation to find the slope.
00:54
So when we do this, we're going to have 1 half minus negative 1, divided by 3, 3, minus one -half...