dogsaver14 dogsaver14
  • 01-07-2016
  • Mathematics
contestada

What is the inverse of y = 2x^2 – 8?

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nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 02-07-2016
[tex]y = 2x^2 - 8 \\ 2x^2 = y + 8 \\ x^2 = \frac{y+8}{2} \\ x = \sqrt{\frac{y+8}{2}} \\ f^{-1} (x)=\sqrt{\frac{x+8}{2}}[/tex]
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