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Question
Which of the following is/are functions?
Which of the following is/are functions?
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Solution
The correct option is C
By drawing the vertical line, we see
The vertical lines intersects the curve more than one time, so it is not a function.
The vertical lines intersects the curve one time only, so it is a function.
The vertical lines intersects the curve one time only, so it is a function.
The vertical line at certain place intersects the curve infinite times, so it is not a function.
By drawing the vertical line, we see
The vertical lines intersects the curve more than one time, so it is not a function.
The vertical lines intersects the curve one time only, so it is a function.
The vertical lines intersects the curve one time only, so it is a function.
The vertical line at certain place intersects the curve infinite times, so it is not a function.
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