00:01
We need to determine with the following points are collinear or not collinear, so we need to find the distance between them.
00:06
So we'll call this point a, b, and c.
00:10
So we're going to find the distance between a, b, c, and then a, c.
00:16
So our distance formula is given by the square root of x2 minus x1 squared plus y2 minus y1 squared.
00:29
So we're going to use the same thing for all of these.
00:31
So we have the square root, parentheses, parentheses minus sine squared, plus parentheses, parentheses minus sign squared.
00:38
So we're going to do the same process for all three parts.
00:50
So from a to b, we have zero minus a negative one and three minus five.
00:56
So we have zero minus a negative one squared plus three minus five squared...