Which ordered pair, when graphed, would not show a function? (miles per gallon, gallons in tank)
(length of shadows/time of day)
(temperature in F, temperature in C)
(number of employees, number of hours worked)

a) miles per gallon, gallons in tank

Step-by-step explanation:

All the options show functional relationship but the first one

a) miles per gallon, gallons in tank

There is no direct relationship between these parameters as miles per gallon depends on the speed and the way of driving. This won't be a function when graphed.

b) length of shadows/time of day

Shadow depends on the time of the day and its length wont repeat at different angles. This is a function.

c) temperature in F, temperature in C

This is a function as each input will have a unique output.

d) number of employees, number of hours worked

Hours of work depends on number of employees. This is a functional relationship.

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