Question: what does the inverse of a function mean in a word problem?
Answer: Getting the inverse of a function is simply switching the x and the y, plotting the new graph (or doing the algebra to get the “new” y), and seeing what you get! ... We use the inverse notation {{f}^{{-1}}}\left( x \right) to say we want the “normal” (x) value back when (y) is a certain number or expression.