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# Every function is relation but all relation are not function

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### Every function is relation but all relation are not function

1. 1. Presentation Department: Business Administration Course Title: Remedial Mathematics Course Code:MAT-012 PRE PARE D FOR Arpita Chakraborty Lecturer Department of CSE Leading University, Sylhet
2. 2. Title of presentationEvery function is relation but all relation are not function PRE PARE D BY Faglul Karim Raihan ID: 1001010142 Sec-C, 1th Semester (24th Batch)Department of Business AdministrationLeading University, Sylhet, Bangladesh Date of Presentation:21/04/2010
3. 3. What is relation?A "relation" is just a relationship between sets of information.
4. 4. What is function?A function species a rule by which aninput is converted to a unique output.
5. 5. Every function is a relation butall relation are not function• Every function is one type of relation because every function creates by making an one way relation. But relation makes from both side for that reason all relation are not function.
6. 6. Description by Drawing a bDrawing (a) is a function as it makesone way relation but drawing (b)makes relation from both side that’swhy it only a relation.
7. 7. Function and Relation in Vertical line aThis graph shows a function, becausevertical line cross this graph in onepoint and it also shows a relation.
8. 8. b bThese graph shows a relation,because vertical lines cross thesegraph more than one point and Itsnot a function.