document.write( "Question 1149757: A line has an x-intercept of 3 and a y-intercept of k and passes through a point (5,8). Find k.
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Algebra.Com's Answer #771118 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "They want you find k in this way that the three points, P1= (3,0), P2= (0,k) and P3= (5,8) lie in one line.\r\n" );
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document.write( "It means that      the slope from P1 to P2,   =  = \r\n" );
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document.write( "should be equal to the slope from P2 to P3,   =  = .\r\n" );
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document.write( "It gives you an equation\r\n" );
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document.write( "     = \r\n" );
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document.write( "Cross multiply and solve for k \r\n" );
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document.write( "    -5k = 3*(8-k)\r\n" );
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document.write( "    -5k = 24 - 3k\r\n" );
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document.write( "    -5k + 3k = 24\r\n" );
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document.write( "    -2k      = 24\r\n" );
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document.write( "     k     =  = -12.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is pure Algebra solution (Algebra to which we teach at this site), presented in a way as it SHOULD BE presented, \r
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\n" ); document.write( "\n" ); document.write( "Regarding incantations from @greenestamps, keep in mind that they are very subjective and reflect his personal opinion.\r
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\n" ); document.write( "\n" ); document.write( "Other people may have DIFFERENT, or VERY DIFFERENT, or even OPPOSITE opinion.\r
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\n" ); document.write( "\n" ); document.write( "Personal opinion weights nothing as an argument when you evaluate methods.\r
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\n" ); document.write( "\n" ); document.write( "If you want to see Algebra method and solution (and I think that you came to this forum exactly for it), you have them
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