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14-10-2021
Mathematics

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If f(x) = 1/9 x - 2, what is f-1 (x)

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hnori22003 hnori22003

14-10-2021

[tex]f(x) = \frac{1}{9} x - 2 \\ [/tex]

[tex]f( - 1) = \frac{1}{9} ( - 1) - 2 \\ [/tex]

[tex]f( - 1) = - \frac{1}{9} - 2 \\ [/tex]

[tex]f( - 1) = - \frac{1}{9} - \frac{18}{9} \\ [/tex]

[tex]f( - 1) = - \frac{19}{9} \\ [/tex]

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