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

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

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

domain

f (x) = \frac{x + 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

2 x + 5 y = 7

4 x + 3

f (x) = x^{2} - 1, x \geq 0

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

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