You need an even number base and a negative exponent to get a negative answer

Given the graphed function below which of the following orders pairs are found on the inverse function

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school