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Popular >

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

Solution

inverse

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

Solution

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

Solution steps

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

Replace

x

with

y

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

Solve for

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

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

Popular Examples

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inverse of (2x^2+20x+68)/(x^2+10x+16)inverse

\frac{2 x ^{2} + 20 x + 68}{x ^{2} + 10 x + 16}

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cosh (- 1 x)

inverse of y= 64/25 x^2 inverse

y = \frac{64}{25} x^{2}

Frequently Asked Questions (FAQ)

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