Question: (a) Under what conditions does an affine function have an inverse? (b) Is the inverse an affine function? If so, find a formula for its

(a) Under what conditions does an affine function have an inverse?
(b) Is the inverse an affine function? If so, find a formula for its matrix and vector constituents.
(c) Find the inverse, when it exists, of the affine functions in Exercise 7.3.1.

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