Question

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

Answer 1

(-∞, ∞)

Explanation:

The domain is the set of values of x for which the function is defined. It is defined for all real numbers, so the domain is -∞ < x < ∞. In interval notation, that is (-∞, ∞).