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13 December, 10:58

What is the inverse of the function f (x) = 2x^2-8 Is this a function?

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  1. 13 December, 11:06
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    F (x) = 2x^2-8 y=2x^2-8 x=2y^2-8 switch the positions of x and y x+8=2y^2 solve for y 1/2x+4=y^2 √ (1/2x+4) = y f^-1 (y) = √ (1/2x+4) is a function
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