A homework problem I am doing requires me to "calibrate" an axis. I think you use hyperbolas, but I am not 100% sure. The slope is 5/3. I think you put the hyperbolas at each whole number, then use the equation: t^2 - x^2 = s^2 so would it be 4? I don't know what exactly constitutes a calibration, so I have no idea what the answer might be. anyway, thanks. Hopefully this is enough information to help.