(Continuation of Example 1.) Graph the functions together with their (a) sum, (b) produ...

(Continuation of Example 1.) Graph the functions together with their (a) sum, (b) product, (c) two differences, (d) two quotients.

Reference: Example 1.

Let’s verify the natural domains and associated ranges of some simple functions. The domains in each case are the values of x for which the formula makes sense.