JazaraH618258 JazaraH618258
  • 30-10-2022
  • Mathematics
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what x value would result in a Y value of 80?

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AndrayaF639270 AndrayaF639270
  • 30-10-2022

As the rule is: y is equal to one less than x squared:

[tex]y=x^2-1[/tex]

For a value of y=80

[tex]\begin{gathered} 80=x^2-1 \\ 80+1=x^2-1+1 \\ 81=x^2 \\ \sqrt[]{81}=x \\ 9=x \end{gathered}[/tex]The x value for y=80 is: x=9
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