What is the domain of the step function f of x is equal to lceil 2 x rceil minus 1 ?

The ceiling function ⌈2x⌉ is defined for every real value of 2x. Since multiplying any real x by 2 still gives a real number, ⌈2x⌉ − 1 is defined for every real x. Therefore, the domain is the set of all real numbers, choice B.

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