Question

eight people of various ages were polled and asked to estimate the number of cds they had bought in the previous year. the following table contains the collected data. the variable x represents the age. the variable y represents the number of cds.

age	number of cds
20	17
24	10
25	6
28	4
30	4
32	2
34	3

using the data in the table, choose which set of axes and which set of ordered pairs should be used in making a scatter plot of the data. graph a

Explanation:

Step1: Identify independent and dependent variables

The age ($x$) is the independent variable and the number of CDs ($y$) is the dependent variable.

Step2: Determine ordered - pairs

The ordered - pairs are formed as $(x,y)$. So the ordered pairs from the table are $(18,12),(20,17),(24,10),(25,6),(28,4),(30,4),(32,2),(34,3)$.

Step3: Determine axes

The $x$-axis should be labeled "Age" and have a range that can accommodate values from 18 to 34. The $y$-axis should be labeled "Number of CDs" and have a range that can accommodate values from 2 to 17.

Answer:

The $x$-axis is labeled "Age", the $y$-axis is labeled "Number of CDs", and the ordered pairs are $(18,12),(20,17),(24,10),(25,6),(28,4),(30,4),(32,2),(34,3)$.