Question 311872
What is a domain and range ?
Please give a example for me ?
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y = 8/sqrt(x-2)
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Domain:
The denominator must not be zero 
and (x-2) must not be negative.
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Solve x-2 > 0
x > 2
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Domain: All Real Numbers greater than 2
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Range: Since the numerator is positive and the
numerator is always positive y > 0.
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Range: All Real Numbers greater than 0
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Let's see if the graph confirms those answers:
{{{graph(400,300,-10,10,-10,10,8/(sqrt(x-2)))}}}
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Cheers,
Stan H.
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