Decide whether the relation is a function, and give the domain and range.
A. Function; domain: [2, ?); range: (-?, ?)
B. Not a function; domain: [2, ?); range: (-?, ?)
C. Function; domain: (-?, ?); range: [2, ?)
D. Not a function; domain: (-?, ?); range: [2, ?)
Answer: C
Mathematics
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A. 
B. 
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cot 
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A. y = 
x - 
B. y = - 
x - 
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x - 
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x - 
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