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Verified Answer :

Edufirst
  • both are not defined for x = 0

    - both have the same symmetry axis: y = x

    - both are hyperbolas

    - both have the same asymptotes: the y-axis, i.e. y = 0

    - both have the same limits when x approaches 0 by the right and by the left: positive and negative infinity.

    -  both have the same limits when x approaches + and - infinity: zero.

    - they never touch one to each other
     

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