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3 February, 21:34

Which of the following expressions represents a function?

a.{ (1, 2), (4, - 2), (8, 3), (9, - 3) }

b. y2 = 16 - x2

c. 2x2 + y2 = 5

d. x = 7

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  1. 3 February, 23:34
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    A. represents a function
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