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2 years ago

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

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

7 0

9514 1404 393

Answer:

(a)

Step-by-step explanation:

To find the inverse function, solve ...

x = f(y)

$x = f(y)\\\\x=\dfrac{1}{9}y-2\\\\x+2=\dfrac{1}{9}y\\\\9(x+2)=y\\\\y=9x+18\\\\\boxed{f^{-1}(x)=9x+18}$

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Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one.

The electrical charge on a metal plate is given by the function below, where t is the time in seconds. What is the charge after 10 seconds?

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My answer:

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