Sumin wants to examine whether doing laundry for several hours one day a week saves her more time than doing it in small chunks twice a week, so she sets up an equation to think about the time involved in various steps. Sumin has developed a .

Mathematical function

Explanation:

A mathematical function can be defined as a binary relation between two sets . The first set is an element of second set.

Sumin has developed the equation to check and calculate the time involved per situation whether doing laundry for several hours in a day or in week for more time or doing small chunks twice in a week. She needs to create various steps for this. This will result in development of a mathematical function.  

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