00:01
I'm going to demonstrate this question on the decimal's graphing calculator.
00:05
And so if we have receiving station x located at the point 74, and the epicenter is determined to be five units from that, that would be like the equation of a circle with radius 5 centered at 7 .4, that would be x minus 7 squared plus y minus 4 squared, equals 5 squared.
00:40
That would give you a radius of 5 from the location of point x.
00:48
Let's do this at 7 .4.
00:58
Then we have centered at negative 9, negative 4.
01:02
That would be x plus 9 squared plus y plus 4 squared equals 13 units would be 13 squared.
01:16
So there's a sense.
01:18
Center at negative 9, negative 4, and we'll call that y.
01:30
And last but not at least, z, which is centered at negative 3, 9...