QuestionAugust 27, 2025

What is the domain of the step function f(x)=vert 2xvert -1 ? xvert xgeqslant -1 xvert xgeqslant 1 xvert xis an integer xvert xis a real number

What is the domain of the step function f(x)=vert 2xvert -1 ? xvert xgeqslant -1 xvert xgeqslant 1 xvert xis an integer xvert xis a real number
What is the domain of the step function f(x)=vert 2xvert -1 ?
 xvert xgeqslant -1 
 xvert xgeqslant 1 
 xvert xis an integer 
 xvert xis a real number

Solution
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Answer

\{ x \mid x \text{ is a real number} \} Explanation 1. Identify the function type The function f(x) = |2x| - 1 is defined for all real numbers since absolute value and subtraction are operations valid for any real number. 2. Determine domain constraints There are no restrictions on x in the expression |2x| - 1. Thus, x can be any real number.

Explanation

1. Identify the function type<br /> The function $f(x) = |2x| - 1$ is defined for all real numbers since absolute value and subtraction are operations valid for any real number.<br />2. Determine domain constraints<br /> There are no restrictions on $x$ in the expression $|2x| - 1$. Thus, $x$ can be any real number.
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