document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98819>Question 98819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This problem has been giving me a head ach for 2 days!! Please help! I need to know how to do this step by step, so that I can do the others... Thanks!!\r<BR>\n" );
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document.write( "Two solutions of the equation Ax+By=1 are (3,-1) and (-4,-2)<BR>\n" );
document.write( "Find A and B... After finding A and B what is the slope and the y-intercept of the line? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71898 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=71898\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two solutions of the equation Ax+By=1 are (3,-1) and (-4,-2)<BR>\n" );
document.write( "Find A and B... After finding A and B what is the slope and the y-intercept of the line?<BR>\n" );
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document.write( "Substitute the x,y values into the form Ax+By=1 to solve for A and B:<BR>\n" );
document.write( "1st:  3A -B=1<BR>\n" );
document.write( "2nd: -4A-2B=1<BR>\n" );
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document.write( "Multiply 1st by 2 to get:<BR>\n" );
document.write( "3rd:  6A-2B=2<BR>\n" );
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document.write( "Subtract 2nd from 3rd to solve for A:<BR>\n" );
document.write( "10A = 1<BR>\n" );
document.write( "A = (1/10)<BR>\n" );
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document.write( "Substitute into 1st to solve for B:<BR>\n" );
document.write( "3(1/10)-B=1<BR>\n" );
document.write( "B = -7/10<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "(1/10)x-(7/10)y = 1<BR>\n" );
document.write( "x-7y=10<BR>\n" );
document.write( "7y = x-10<BR>\n" );
document.write( "y = (1/7)x - (10/7)<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Slope is 1/7<BR>\n" );
document.write( "y-intercept is -10/7<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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