What is the domain of f(x)=(x-4)/(x-9) ?

The domain of f(x)=(x-4)/(x-9) is x 9

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domain of f(x)=(x-4)/(x-9)

domain

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

x < 9 or x > 9

Interval Notation

(- \infty, 9) \cup (9, \infty)

Solution steps

Find undefined (singularity) points:

x = 9

The function domain

x < 9 or x > 9

x^{5} - 3 x + 5

f (x) = x ln (x - 4)

f (x) = (\frac{1}{x}) - 1

f (x) = \frac{x}{2 x - 5} = 1

f (x) = \frac{( 8 x + 5 )}{( 4 x + 2 )}

What is the domain of f(x)=(x-4)/(x-9) ?
The domain of f(x)=(x-4)/(x-9) is x<9\lor x>9