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Which of the following is a function ?...

Which of the following is a function ?

A

`{(x, y) : y^(2) = x, x, y in R}`

B

`{(x, y) : y = |x|, x, y, in R}`

C

`{(x, y) : x^(2) + y^(2) = 1, y, x in R}`

D

`{(x, y) : x^(2) - y^(2) = 1, x, y in R}`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-RELATIONS AND FUNCTIONS -Assignment (Section - B) Objective Type Questions (one option is correct)
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