Write the Domain in Interval Notation $$z ( a ) = \sqrt { a + 9 }$$

question 198

Multiple Choice

Write the domain in interval notation.
- $$z ( a ) = \sqrt { a + 9 }$$

• A) \([ 0 , \infty )\)
• B) \(( - \infty , \infty )\)
• C) \([ - 9 , \infty )\)
• D) \(( - 9 , \infty )\)

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