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How do you find the inverse function #y=x#?

Answer 1

The equation #y = x# defines the identity function that maps any number to itself. It is its own inverse. You might like to say the inverse is #x = y#

Enough said!

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Answer 2

Serenity Jones

To find the inverse function of ( y = x ), you interchange the roles of ( x ) and ( y ) and then solve for ( y ) again:

Start with the original function: ( y = x ).
Interchange ( x ) and ( y ): ( x = y ).
Solve for ( y ): ( y = x ).

Therefore, the inverse function of ( y = x ) is ( y = x ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.