What is the domain in interval notation for #f(x ) = \frac { x - 1} { x - 3} #?

1 Answer
bp
Oct 21, 2017

#(-oo, 3)U (3,oo)#

Explanation:

The given function is defined for all real values of x, except x=3, which makes it undefined. Hence the domain of f(x) is all real numbers excluding x=3.

In the interval notation the would be written as #(-oo, 3)U (3,oo)#

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