3 years ago

9 cups for 6 dollars. many cups for 1 dollar

Mathematics

1 answer:

Rainbow [258]3 years ago

4 0

Answer:

1 cup for 1.5 dollars

Step-by-step explanation:

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From the given inverse function, we have

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By definition of inverse function,

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so that

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$a\left(2x-\dfrac12\right) + \dfrac b2 = x$

$2ax - \dfrac a2 + \dfrac b2 = x$

$\implies\begin{cases}2a=1 \\\\ -\dfrac a2+\dfrac b2 = 0\end{cases}$

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