How do you find the domain of |2x + 1|?

1 Answer
Azimet
Jan 15, 2017

The domain is all real numbers, or RR.

Explanation:

The domain of a real function, or expression, is a set that contains every possible value the independent variable (x, in our case) can take, so that the evaluation is possible and makes sense.

abs(2x-1) makes sense for any real value of x, therefore its domain is all real numbers.

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