SOLUTION: What are the domain and range of the function y= 5 √x-2 ??

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Question 242282: What are the domain and range of the function y= 5 √x-2 ??
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What are the domain and range of the function y= 5 sqrt(x-2) ??
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Domain:
If x-2 is negative y would be the square root of a negative
number; then y would not be a Real Number.
So x-2 must be >= 0
Solving for x: x must be >= 2
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Domain: All Real Numbers >= 2
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Range:
The square root is always >= 0
So the range is All Real Numbers >= 0.
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Cheers,
Stan H.