Functions and their inverses

A function pyramid is a structure where each entry in the pyramid is determined by the two entries below it. Can you figure out how the pyramid is generated?

Consider these questions concerning inverting rational functions

Make a functional window display which will both satisfy the manager and make sense to the shoppers

We only need 7 numbers for modulus (or clock) arithmetic mod 7 including working with fractions. Explore how to divide numbers and write fractions in modulus arithemtic.

Can you make a curve to match my friend's requirements?