Which of the following function is a many one function ?




As we have learned
Many - One Graphical check -
The function where two or more elements in A can have same image in B.
- wherein
To check it graphially Aline parallel to x-axis cuts the curve at more then one point.
Since it has two values of x corresponding to the same value of y

Option 1)

Option 2)

Option 3)

Option 4)

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