00:01
We need to determine the following coordinate points, negative 7, 4, 6, negative 2, and 0, negative 15.
00:07
Make a right triangle.
00:10
So we need to find the distance between the three sets of points.
00:13
So we're first going to label x1, y1.
00:17
I'm going to do that for all our points.
00:21
And then the second point is x2y2.
00:30
So we're going to do the first one.
00:37
So d is equal to the square root in parentheses squared plus with a line.
00:43
Minus sign in parentheses squared.
00:46
So x2 is 6, y2 is negative 2.
00:52
Then we have the minus sign.
00:55
And then y, x1 and y1, we have negative 7, and we have 4.
01:06
So we simplify and that becomes 13 squared plus negative 6 squared.
01:16
And that becomes the square root of 13 squared plus 6 squared.
01:27
That becomes the square root of 205.
01:32
So we do the same thing for the next one.
01:39
We have d is equal to the square root, parentheses squared plus with a minus sign, parentheses squared with a minus sign.
01:48
So y2 is negative 15.
01:50
We don't want it there.
01:55
We want x2, 0, and then negative 15...