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16 July, 17:33

Which function has an inverse that is a function?

b (x) = x2 + 3

d (x) = - 9

m (x) = - 7x

p (x) = 1x1

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  1. 16 July, 18:28
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    Answer is option C.

    m (x) = - 7x

    This is a bijective function.

    Here for everyvalue of theres is only one and one unique value of y.

    And hence its inverse will also be a function.
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