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

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

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

domain

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

x < 3 or x > 3

Interval Notation

(- \infty, 3) \cup (3, \infty)

Solution steps

Find undefined (singularity) points:

x = 3

The function domain

x < 3 or x > 3

f (x) = \frac{x ^{2} + 1}{x + 3}

f (x) = x (x^{2} + 1)

f (x) = \frac{e ^{x}}{1 + e ^{x}}

\frac{1}{1 + e ^{x}}

lo g_{6} (2 x - 4)

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