... For instance, suppose you were to calculate the value, V ,of the change in your pocket. V is a function of q, d, n, and p, where q, d, n, and p are thenumber of quarters, dimes, nickels, and pennies, ... graph in more than oneplace, then the function is 1 -to- 1. Functions: The Grand SchemeIn this text we will be looking at functions of one variable—but not all functions are functions of one variable. ... function?xyyxxyyx(a) (b) (c) (d)Figure 1.18AnswerWe can tell that the relationships represented in Figures 1. 16( a)–(c), 1.17(a) and (b), and 1.18(b) and (d) are, in fact, functions. The test for a function...