document.write( "Question 764996: If the graph of 3x-5y=s passes through points (3,1) and (5,r), what is the value of r? \n" ); document.write( "

Algebra.Com's Answer #465936 by ramkikk66(644) $\"\"$ $\"About$

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document.write( "3*x - 5*y = s\r\n" );
document.write( "This line passes through (3,1). That means the above equation is valid for\r\n" );
document.write( "x = 3 and y = 1.\r\n" );
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document.write( "Substituting, 3*3 - 5*1 = s. \r\n" );
document.write( "i.e. s = 4.\r\n" );
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document.write( "This line also passes through (5,r). That means the above equation is valid for\r\n" );
document.write( "x = 5 and y = r.\r\n" );
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document.write( " Since we already know s = 4\r\n" );
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