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Aye HELP PLEASE!!

What is the domain of the step function f(x) = ⌈2x⌉ – 1?

A.x

B.x

C. x is an integer

D. x

1 Answer

5 votes
The biggest possible set is
\mathbb{R}.

The question to ask yourself is: is the operation
\lceil 2x \rceil -1 not valid for some values of x ? ("not valid" = impossible to compute)
After removing all invalid values of x (if any), you have obtained the domain.

User Hackworth
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