Answer:(19/x)^(-3)
Step-by-step explanation:
let f(x) = y, y = 19/x^3
inverse means that we want the reverse in effect of the function, so whats the opposite of y = 19/x^3? x = 19/y^3 of course! You just replace the y with x and replace all the x with y.
now try to get the reversed function x = 19/y^3 in terms of y.