SOLUTION: Find the domain and range of \sqrt{x} + 9 Write the answer in interval notation

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Question 778470: Find the domain and range of \sqrt{x} + 9
Write the answer in interval notation
Answer by lwsshak3(11628) About Me  (Show Source):
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Find the domain and range of \sqrt{x} + 9
Write the answer in interval notation
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y=√x+9
x≥0
domain: [0,∞)
..
√x=y-9
x=(y-9)^2
Range: all real numbers, (-∞,∞)