Question

Let a equals to (x:x€Z, -4 less than equal to x less than equal to 4
Define a relation R:A->A by
R=( (x, y): y= 2x+1)
Write R in roster form? is r a function? justify your answer? represent are diagrammatically .also write domain range and codomain ofR

Answer 1

Answer:

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Answer 2

Refer to the attachment!!^