a.
To explain why the relation that pairs letter-number combinations with food or drink items is a function.
a.
Explanation of Solution
Given:
Selection in a vending machine by pressing one letter and then one number.
Calculation:
The relation that pairs letter-number combinations with food or drink items is a function because there is one to one correspondence.
b.
To identify the independent and the dependent variables.
b.
Answer to Problem 27E
The letter number variable is independent while the food or drink item variable is the dependent variable.
Explanation of Solution
Given:
Selection in a vending machine by pressing one letter and then one number.
Calculation:
The letter number variable is independent while the food or drink item variable is the dependent variable.
c.
To find out the domain and range of the function.
c.
Answer to Problem 27E
Explanation of Solution
Given:
Selection in a vending machine by pressing one letter and then one number.
Calculation:
The domain D of the function is
The range R of the function is
Chapter 3 Solutions
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