A relation is defined in the set Z of integers as follows (x, y) Î R iff x2 + y2 = 9. Which of the following is false?

R = {(0, 3), (0, – 3), (3, 0), (– 3, 0)}

A relation is defined in the set Z of integers as follows

1.	A relation is defined in the set Z of integers as follows (x, y) Î R iff x2 + y2 = 9. Which of the following is false?
A.	R = {(0, 3), (0, – 3), (3, 0), (– 3, 0)}
B.	Domain of R = {– 3, 0, 3}
C.	Range of R = {– 3, 0, 3}
D.	At least one if false
Answer» B. Domain of R = {– 3, 0, 3}

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