document.write( "Question 822281: How to find Domain and Range of this function without using a graph:\r
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Algebra.Com's Answer #494770 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( "y = 4-2√x\r\n" );
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document.write( "x must be non-negative, so the least value x can\r\n" );
document.write( "take on is 0; thus its domain is [0,oo)\r\n" );
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document.write( "The largest possible value of y is when the least\r\n" );
document.write( "amount is subtracted from 4, which is when x=0, and \r\n" );
document.write( "y=4,\r\n" );
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document.write( "so the range is (-oo,4]\r\n" );
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document.write( "Edwin

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