document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204964>Question 1204964</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do i graph y=2x-1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #841521 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3817)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=841521\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "This is a linear equation of the form y = mx+b<BR>\n" );
document.write( "m = 2 = slope<BR>\n" );
document.write( "b = -1 = y intercept\r<BR>\n" );
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document.write( "The y intercept is where the line crosses the y axis.<BR>\n" );
document.write( "Therefore (0,-1) is one point on the line.\r<BR>\n" );
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document.write( "The slope 2 = 2/1 means \"go up 2, then right 1\".<BR>\n" );
document.write( "Follow this motion path to go from (0,-1) to (1,1)\r<BR>\n" );
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document.write( "Plot the two points (0,-1) and (1,1)<BR>\n" );
document.write( "Draw a straight line through them<BR>\n" );
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document.write( "Another approach is to plug in x = 0 and it leads to y = -1 through this scratch work<BR>\n" );
document.write( "y = 2x-1<BR>\n" );
document.write( "y = 2*0-1<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "This shows (0,-1) is on the line<BR>\n" );
document.write( "And do the same for x = 1<BR>\n" );
document.write( "y = 2x-1<BR>\n" );
document.write( "y = 2*1-1<BR>\n" );
document.write( "y = 1<BR>\n" );
document.write( "This shows (1,1) is also on the line\r<BR>\n" );
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document.write( "GeoGebra and Desmos are two (of many more) graphing tools that can be used to verify the answer.<BR>\n" );
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