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Popular >

inverse of f(x)=(x+9)/(x-4)

Solution

inverse

f (x) = \frac{x + 9}{x - 4}

Solution

\frac{9 + 4 x}{x - 1}

Solution steps

y = \frac{x + 9}{x - 4}

Replace

x

with

y

x = \frac{y + 9}{y - 4}

Solve for

y, x = \frac{y + 9}{y - 4}

\frac{9 + 4 x}{x - 1}

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Frequently Asked Questions (FAQ)

What is the inverse of f(x)=(x+9)/(x-4) ?
The inverse of f(x)=(x+9)/(x-4) is (9+4x)/(x-1)