Question

. Each U.S. coin is mapped to its monetary value. Tell whether this situation represents a function. Explain your reasoning. If the situation represents a function, give the domain and range.

Answer 1

Coin Value

cent 1 cent
nickel 5 cents
dime 10 cents
quarter 25 cents
dollar 100 cents

This is a function, because you can state unambiguosly the value of each coin.

The domain is the set of input values: { cent, nickel, dime, quarter, dollar}

The range is the set of output values: {1, 5, 10, 25, 100}