Xes Yen Vy The Function F(x) Converts US Dollars Into Japanese Yen. What Does The Inverse Function Do? Use 'U' For Dollar?

The function f(x) converts US dollars into Japanese Yen. What does the inverse function do? use 'U' for dollar? - xes yen vy

f (x) = kx
where k is the factor by which the yen miltiplied
x = yen in hundreds of
90cent mean = ¥ 100 = $ 0.9
then k = 0.9
f (x) = 0.9x
y = o.9x
ox = y/o.9
f ^ 1 (y) = Y / 9