00:02
So we have here this equation, x squared plus y squared equals 324, and that's going to be the equation that tells us the area of this circle.
00:12
X squared plus y squared equals 324, equals 324.
00:17
So if we can visualize what this means, right, we have this circle, and it's centered as zero, and inside of this circle is 324.
00:29
So 324 would be the outer edge of this circle.
00:34
And then everything that's going to be less than is going to be inside of that.
00:38
And everything that's greater than is going to be outside of that.
00:41
Okay.
00:42
So what we need to do is just plug these coordinates in that they give us and see if it is less than 324.
00:47
If it's less than 324, then it's inside of that area.
00:50
If it's greater than 324, then it's outside of that area.
00:53
So let me remind myself, we have negative 9, negative 16.
00:56
So we have negative 9 and negative 16.
01:00
And we're seeing does this fall inside of that circle? so we're going to say x squared plus y squared equals 324.
01:10
And then we're going to say we're going to plug negative 9 and for x negative 9 squared plus negative 16 squared...