Years Ago, People Used Fountain Pens $\mathrm { f } ^ { - 1 }$

question 100

Essay

Years ago, people used fountain pens. The ink was very "wet" and so a blotter was used to absorb "wet" ink left
on the surface of the paper. Suppose you have a single sheet of graph paper and that you have just used your
fountain pen to graph the one-to-one function f. Explain how, if the ink is "wet", you could now obtain the
graph of f $\mathrm { f } ^ { - 1 }$ using only your sheet of graph paper. (Hint: Fold the sheet of graph paper.)

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Definitions:

Deceptive Labelling

The practice of misrepresenting the qualities, ingredients, or characteristics of a product on its label.

Food and Drugs Act

A law that sets standards for the safety and quality of food, drugs, medical devices, and cosmetics.

Penal Statutes

Laws enacted to punish violations serving as deterrents against the commission of crimes.

Common Law Remedies

Legal solutions or compensations available under common law systems, typically including damages, injunctions, and restitution.