Find the Domain of X in the Expression $\sqrt { 16 - x ^ { 2 } }$

question 326

Multiple Choice

Find the domain of x in the expression $\sqrt { 16 - x ^ { 2 } }$ .

• A) \(( - \infty , - 4 ] \cup [ 4 , \infty )\)
• B) \(( - \infty , 4 ]\)
• C) \([ - 4,4 ]\)
• D) \([ - 4 , \infty )\)
• E) \(( - \infty , \infty )\)

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Definitions:

High-Low Method

A method of separating a mixed cost into its fixed and variable elements by analyzing the change in cost between the high and low activity levels.

Fixed Component

A portion of the total costs that remains unchanged regardless of the level of activity or production volume.

Lubrication Cost

An expense category covering the costs associated with the lubrication of machinery and equipment to ensure smooth operation.

Variable Cost

Expenses that fluctuate with the level of output, including costs like materials and labor directly involved in the production.