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For each function, determine its domain and range?
Please show work as well/explain the steps.
1. y = √(x - 4)
2. y = √(x^2 - 4)
3. y = √(4 - x^2)
4. y = √(x^2 + 4)
1 Answer
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- ted sLv 79 years agoFavorite Answer
read the definition of DOMAIN to see x ≥ 4 ; | x | ≥ 2 ; | x | ≤ 2 , all reals
and definition of RANGE to see y ≥ 0 , y ≥ 0 ; [ 0 , 2 ] ; y ≥ 2
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