document.write( "Question 630075: If w, x, y, and z are four nonzero numbers, then all of the following proportions are equivalent EXCEPT\r
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Algebra.Com's Answer #396711 by AnlytcPhil(1806)\"\" \"About 
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If w, x, y, and z are four nonzero numbers, then all of the following proportions are equivalent EXCEPT
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document.write( " Form the equivalent cross-product equations.\r\n" );
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document.write( "The cross product equation is\r\n" );
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document.write( "\"%28matrix%282%2C1%2CLEFT%2CNUMERATOR%29%29\"×\"%28matrix%282%2C1%2CRIGHT%2CDENOMINATOR%29%29\" = \"%28matrix%282%2C1%2CRIGHT%2CNUMERATOR%29%29\"×\"%28matrix%282%2C1%2CLEFT%2CDENOMINATOR%29%29\"\r\n" );
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document.write( "(A) \"z%2Fw=x%2Fy\" the cross product equation: zy = xw\r\n" );
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document.write( "(B) \"w%2Fx=y%2Fz\" the cross product equation: wz = yx\r\n" );
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document.write( "(C) \"y%2Fw=z%2Fx\" the cross product equation: yx = zw\r\n" );
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document.write( "(D) \"x%2Fz=w%2Fy\" the cross product equation: xy = wz\r\n" );
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document.write( "(E) \"xy%2Fwz=1%2F1\" the cross product equation: xy = wz\r\n" );
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document.write( "The cross product equations are all equivalent except (A)\r\n" );
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document.write( "Edwin
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