Briana's function uses distance as an input to determine signal strength,

Briana's function uses distance as an input to determine signal strength, but Briana is interested in using signal strength to find a certain distance. Her device reports a signal strength of 25, but Briana wants to know how far away the transmitters are from a cell phone tower.

She can determine the distance by writing the inverse function of  f(x) = 100/x^2 and using 25 as the input value to the inverse function.

Find the inverse of the function, and use it to evaluate. f^1(25)