document.write( "Question 318313: Which of the following represents the data in the table?\r
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\n" ); document.write( "\n" ); document.write( " x y \r
\n" ); document.write( "\n" ); document.write( " 3 5
\n" ); document.write( " 6 2 1/2
\n" ); document.write( " 9 1 2/3
\n" ); document.write( " 12 1 1/4
\n" ); document.write( " 15 1\r
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\n" ); document.write( "\n" ); document.write( "a) xy = 3
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\n" ); document.write( "c) y = 15 / x
\n" ); document.write( "d)15 = x / y\r
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Algebra.Com's Answer #227808 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "x y \r\n" );
document.write( "3 5\r\n" );
document.write( "6 2 1/2\r\n" );
document.write( "9 1 2/3\r\n" );
document.write( "12 1 1/4\r\n" );
document.write( "15 1 \r\n" );
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document.write( "a) \r\n" );
document.write( "b) \r\n" );
document.write( "c) \r\n" );
document.write( "d) \r\n" );
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document.write( "We try substituting x=3 and y=5 to see which ones give true results:\r\n" );
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document.write( "a) \r\n" );
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document.write( "     \r\n" );
document.write( "   \r\n" );
document.write( "   \r\n" );
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document.write( "That's false so we've ruled out b \r\n" );
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document.write( "c) \r\n" );
document.write( "   \r\n" );
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document.write( "So c is true, so we haven't ruled out c yet \r\n" );
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document.write( "d) \r\n" );
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document.write( "That's false so we've ruled out d\r\n" );
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document.write( "So the correct choice is either a or c:\r\n" );
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document.write( "------------------\r\n" );
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document.write( "Let's try the easiest values:\r\n" );
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document.write( "We try substituting x=15 and y=1 to see which ones give true results:\r\n" );
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document.write( "a) \r\n" );
document.write( "    \r\n" );
document.write( "     \r\n" );
document.write( "   \r\n" );
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document.write( "That's false so we've ruled out a. So the answer is c.\r\n" );
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document.write( "Edwin

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