Domain and range are the possible values a function can take as input and output, respectively.
Given that:
[tex](b,M) \to[/tex] The ordered pair
Where:
[tex]b \to[/tex] Number of bags of mandarins
[tex]M \to[/tex] Number of mandarins
To determine the domain and range, we consider the following:
The shelf can hold a maximum of 20 bags implies that the domain of the relation is from 0 to 20. i.e. [tex]0 \le b \le 20[/tex]
When there is no bag on the shelf, the number of mandarin is:
[tex]M = 12 \times 0 = 0[/tex]
When the shelf has the maximum (i.e. 20 bags), the number of mandarin is:
[tex]M = 12 \times 9 = 108[/tex]
This implies that the range of the relation is: [tex]0 \le M \le 108[/tex]
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