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Let A = {-2,-1,0,1,2} and f:A to ZZ be d...

Let A = {-2,-1,0,1,2} and `f:A to ZZ` be defined by f(x) = 2x+1 for all ` x in A`. Find f as a set of ordered pairs and find its range.

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The correct Answer is:
`f={(-2,-3),(-1,-1),(0,1),(1,3),(2,5)}` and range = {-3,-1,1,3,5}.
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