Question 1035565
the equation is y = f(t) = 2.606*t + 131.8


to find the inverse equation, replace y with t and replace t with y to get:


t = -2.606*y + 131.8
solve for y to get y = (t - 131.8) / -2.606


your normal equation is y = -2.606 * t + 131.8
your inverse equation is y = (t - 131.8) / -2.606


if you allow t to be equal to 61.7 in the inverse equation, you will get y = 26.89946278.
if you allow t to be equal to 26.89946278 in the normal equation, you will get y = 61.7.


the normal equation tells you that, if you are 26.89946278 days after the end of may 2006, then the maximum expected 5 day runoff volume is 61.7 thousand acre feet.


the inverse equation tells you that, if you expect the maximum 5 day runoff volume to be 61.7 thousand acre feet, then that would occur 26.89946278 days after the end of may 2006.


in the normal equation, y represents the number of thousand acre feet and t represents the number of days.


in the inverse equation, y represents the number of days and t represents the number of thousand acre feet.