What is the inverse of f(x)=((x+21))/(x-7) ?

The inverse of f(x)=((x+21))/(x-7) is (21+7x)/(x-1)

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inverse of f(x)=((x+21))/(x-7)

inverse

f (x) = \frac{( x + 21 )}{x - 7}

\frac{21 + 7 x}{x - 1}

Solution steps

y = \frac{x + 21}{x - 7}

Replace

x

with

y

x = \frac{y + 21}{y - 7}

Solve for

y, x = \frac{y + 21}{y - 7}

\frac{21 + 7 x}{x - 1}

m = - 2, (4, 0)

f (x) = x^{3} - 3 x^{2}

(x - 15)^{2}

(- 3, 2), (4, 4)

\frac{- 2}{x + 4} - 2

What is the inverse of f(x)=((x+21))/(x-7) ?
The inverse of f(x)=((x+21))/(x-7) is (21+7x)/(x-1)