document.write( "Question 633755: Determine whether the relation is a function.\r
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document.write( "{(-5, -4), (-2, 9), (-1, -2), (-1, 7)}\r
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document.write( "Determine whether the relation is a function.\r
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document.write( "{(-7, -1), (-7, 2), (-1, 8), (3, 3), (10, -7)}\r
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document.write( "Determine whether the relation is a function.\r
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document.write( "{(1, -3), (1, 1), (6, -8), (9, -3), (11, -3)}\r
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document.write( "Determine whether the relation is a function.\r
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document.write( "{(-6, -9), (-2, 1), (1, -1), (7, -7)}
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Algebra.Com's Answer #399104 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "This is real easy. No calculating required, just look and see.\r\n" ); document.write( " \n" ); document.write( "Determine whether the relation is a function.\r \n" ); document.write( "\n" ); document.write( "{(-5, -4), (-2, 9), (-1, -2), (-1, 7)} \n" ); document.write( " \r\n" ); document.write( "This is NOT a function because (-1, -2) and (-1, 7) are two different\r\n" ); document.write( "ordered pairs with the same FIRST coordinate -1. A function cannot\r\n" ); document.write( "contain two different ordered pairs with the same FIRST coordinate.\r\n" ); document.write( " \n" ); document.write( "Determine whether the relation is a function.\r \n" ); document.write( "\n" ); document.write( "{(-7, -1), (-7, 2), (-1, 8), (3, 3), (10, -7)} \n" ); document.write( " \r\n" ); document.write( "This is NOT a function because (-7, -1) and (-7, 2) are two different\r\n" ); document.write( "ordered pairs with the same FIRST coordinate -7. A function cannot\r\n" ); document.write( "contain two different ordered pairs with the same FIRST coordinate.\r\n" ); document.write( " \n" ); document.write( "Determine whether the relation is a function.\r \n" ); document.write( "\n" ); document.write( "{(1, -3), (1, 1), (6, -8), (9, -3), (11, -3)} \n" ); document.write( " \r\n" ); document.write( "This is NOT a function because (1, -3) and (1, 1) are two different\r\n" ); document.write( "ordered pairs with the same FIRST coordinate 1. A function cannot\r\n" ); document.write( "contain two different ordered pairs with the same FIRST coordinate.\r\n" ); document.write( " \n" ); document.write( "Determine whether the relation is a function.\r \n" ); document.write( "\n" ); document.write( "{(-6, -9), (-2, 1), (1, -1), (7, -7)} \n" ); document.write( " \r\n" ); document.write( "This IS a function because it does NOT contain two different ordered \r\n" ); document.write( "pairs with the same FIRST coordinates.\r\n" ); document.write( "\r\n" ); document.write( "[Note that a function may contain two different ordered pairs with the\r\n" ); document.write( "same SECOND coordinates. It's only the FIRST coordinates that cannot\r\n" ); document.write( "appear twice in two different ordered pairs.]\r\n" ); document.write( "\r\n" ); document.write( "Edwin \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |