Question 197865
compare these problems to y=√x 
y=-2√(x+1)+4* *the square root line covers x+1+4
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The "x+1" moves every point of y = sqrt(x) one to the left.
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The "2" stretches the curve as it multiplies each y value by 2
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The "4" moves all the points up 4 units.
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also 
y=(2/3)√(x-5)* *the square root line covers x-5
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The "x-5" moves all the points 5 to the right
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The (2/3)compresses the curve
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Cheers,
Stan H.