What is the domain of f(x)=(x+3)/(x-9) ?

The domain of f(x)=(x+3)/(x-9) is x 9

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domain of f(x)=(x+3)/(x-9)

domain

f (x) = \frac{x + 3}{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

f (x) = 8 x^{2} - 79 x + 63

f (x) = 2 ln (- 4 x + 7) - 2

f (x) = 10 x - 25

f (s) = - s^{2} - 2 s + 15

\frac{7 x + 8}{6 x - 7}

What is the domain of f(x)=(x+3)/(x-9) ?
The domain of f(x)=(x+3)/(x-9) is x<9\lor x>9