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3 years ago

F(x)=9(x-8) find f^-1(x)

Mathematics

1 answer:

mina [271]3 years ago

8 0

Answer:

$f^{-1}$ (x) = $\frac{1}{9}$ x + 8

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 9(x - 8) ← divide both sides by 9

$\frac{y}{9}$ = x - 8 ( add 8 to both sides )

$\frac{y}{9}$ + 8 = x

Change y back into terms of x with x = $f^{-1}$ (x) , thus

$f^{-1}$ (x) = $\frac{1}{9}$ x + 8

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Step-by-step explanation:

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First way
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Second way

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2 years ago

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prohojiy [21]

Answer:

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Step-by-step explanation:

The question is incomplete as the dimension of the phone was not given.

However, the following explanation will guide you

Given

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Required

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$75= Area * Height$

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To solve for height, we need the dimension of the phone or the area.

Take for instance; the length and width of the phone is 5 by 5 inches;

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konstantin123 [22]

Answer:

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