In a company, it takes 4 employees 4 days to complete a task. It would take 2 employees 8 days to complete the same task.Which function can be used to represent e, the number of employees working on the task, and d, the number of days it takes them to complete that task?direct variation; d = kedirect variation; de = kinverse variation; d = keinverse variation; de = k

The concept that can be used in order to answer this item is that of man-days. The total number of man-days required to do the job should always be constant. 

This can be illustrated by the givens above.
Scenario 1: 
     N1 = (4 employees)(4 days) = 16 man-days

Scenario 2:
    N2 = (2 employees)(8 days) = 16 man-days

The equation for determining the value of e is equal to,
     k = (d)(e)

The answer is the second choice.