Question 480662
determine the domain and range for y = sqrt(2x-1)
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Domain = ?
The radicand (2x-1) cannot be negative.
Solve 2x-1 >= 0
2x >= 1
x >= 1/2
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Domain: All Real Numbers greater than or equal to 1/2.
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Range = ?
The sqrt cannot be negative:
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Range: All Real Numbers greater than or equal to 0.
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Cheers,
Stan H.