Find the Domain of the Function $$y = \sqrt { 20 - x }$$

question 261

Multiple Choice

Find the domain of the function.
- $$y = \sqrt { 20 - x }$$

• A) \(( - \infty , \infty )\)
• B) \(( \sqrt { 20 } , \infty )\)
• C) all real numbers except 20
• D) \([ \infty , 20 ]\)

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