Determine whether the following relation is a function.
For the year 2009 the input is the temperature at noon in degrees Fahrenheit and the output is the day of the year (1 to 365).
A) Yes
B) No

Question

Quizplus · Accepted Answer

For a relation to be a function, each input must have exactly one output. In this case, the same temperature at noon can occur on multiple days of the year, meaning a single input (temperature) could correspond to multiple outputs (days), violating the definition of a function.

Determine Whether the Following Relation Is a Function