ScottyX240016 ScottyX240016
  • 03-11-2022
  • Mathematics
contestada

If f(x) = 6x + 8(x + 2), find f-1(x).f-1(x) = (x - 16)/14f-1(x) = x +16/14f-1(x) = -x - 16/14f-1(x) = -x + 16/14

If fx 6x 8x 2 find f1xf1x x 1614f1x x 1614f1x x 1614f1x x 1614 class=

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DrayvenW569206 DrayvenW569206
  • 03-11-2022

SOLUTION:

We want to find the inverse of f(x);

[tex]f(x)=6x+8(x+2)[/tex]

We solve for x;

[tex]\begin{gathered} y=6x+8(x+2) \\ y=6x+8x+16 \\ y=14x+16 \\ y-16=14x \\ x=\frac{y-16}{14} \\ interchange\text{ }y\text{ }and\text{ }x \\ f^{-1}(x)=\frac{x-16}{14} \end{gathered}[/tex]

Thus the answer is OPTION A

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