x2 + y2 = r2 Where "x" and "y" represent the co-ordinates of any point on the curve relative to it's center point, and "r" represents it's radius. If you want to specify a curve that goes around a...
The advantege of a calibration curve is that it allows you to find the concentration of unknown substances. This is particularly useful say if you want to find the purity of synthesisd aspirin.