document.write( "Question 208477: I am trying to figure out a question that has 2 parts. The question is as follows:\r
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document.write( "A) What is the domain and range of the relation x +[y] = 3?
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document.write( "b) What is the domain and range of the function y = 2x^2-3?\r
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document.write( "Since [y] cannot be a negative number would the answer for part (a) be: (-&, 3)
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document.write( "For part (b) I am not quite sure bit I think it would be a union containing the square root of 2).\r
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document.write( "I am lost!\r
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document.write( "Any help would be greatly appreciated.\r
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Algebra.Com's Answer #157696 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I am trying to figure out a question that has 2 parts. The question is as follows: \n" ); document.write( "A) What is the domain and range of the relation x +[y] = 3? \n" ); document.write( "I assume your [y] means absolute value of y. \n" ); document.write( "If that is correct you get: \n" ); document.write( "|y| = -x+3 \n" ); document.write( "Since |y| is never negative you have \n" ); document.write( "-x+3 >= 0 \n" ); document.write( "-x >= -3 \n" ); document.write( "x <= 1 (That is the domain) \n" ); document.write( "---- \n" ); document.write( "The domain is All Real Numbers. \n" ); document.write( "============================================ \n" ); document.write( "b) What is the domain and range of the function y = 2x^2-3? \n" ); document.write( "Domain: All Real Numbers \n" ); document.write( "Range: All Real Numbers >= -3. \n" ); document.write( "============================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |