Determine whether the given relationship defines a function. If so, identify the independent and dependent variable and why the relationship is a function.
The unemployment rater in a particular country for month m during June - November 2010,
defined by the table.
Month
6
7
8
9
10
11
Unemployment
Rate
7.2
72
8.1
7.2
7.2
9.9
Choose the correct answer below.
A It is not a function because there is more than one unemployment rate r for each month m.
B. Yes. The independent variable is m and the dependent variable is r. It is a function because there is one month m for each unemployment rater.
C. It is not a function because there is one unemployment rater for each month m.
D. Yes. The independent variable is m and the dependent variable is r. It is a function because there is one unemployment rater for each month m.