00:01
So we're told the vertices of a right triangle here, and we're going to need to graph it to help us kind of see where it's falling on the coordinate plane.
00:09
And then from there, we'll find the area of the triangle.
00:11
And just a little reminder, the area of a triangle is one half times base times height.
00:17
So let's go ahead and plot these points.
00:19
I have negative 1, negative 7.
00:21
So i'm going to go from the origin in the negative 1 direction on the x.
00:25
So that will put me right here.
00:26
And then i'm going to go down 7 since it's a negative 7.
00:30
Here is my point, negative 1, negative 7.
00:34
Next, i have the point negative 5, negative 7.
00:37
So instead of stopping at negative 1, i'll keep going to negative 5.
00:41
And then again, it's down 7.
00:44
So this is negative 5, negative 7.
00:48
And for my last point, i have negative 5, negative 2.
00:52
So i am starting at the same x value, or i go from the origin to the same x value, and then go to 2 down.
00:59
So this is negative 5, negative 2...