Which function is the inverse of a quadratic function? A. square root

b. absolute value

c. inverse variation

d. linear

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  a.  square root

Step-by-step explanation:

For function f(x) = x², the inverse function is found by solving ...

  x = f(y)

  x = y²

If we take the square root of both sides of this equation, we get ...

  √x = y

That is, the inverse of the quadratic function f(x) is ...

  f⁻¹(x) = √x . . . . . square root

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step-by-step explanation: