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# Let A = {5, 6, 7, 8 }; B = {–11, 4, 7, –10, –7, –9, –13 } and f = {(x, y); y = 3 – 2x, x $\in$ A, y $\in$ B }  i) Write down the elements of f ii) What is the Co-domain  iii) What is the range? iv) Identify the type of function.

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(i) f = { (5, –7), (6, –9),(7, –11), (8, –13) }
(ii) Co domain = {–11, 4, 7, –10, –7, –9, –13}
(iii) Range = {-7, –9, –11, –13}
(iv) It a one - one function.
answered Jun 29, 2014