document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=51248>Question 51248</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help: Determine the equation of the line that has a slope of 4 and passes through the point (2,8). Write the equation in slope intercept form </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #34179 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=34179\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write the equation in slope-intercept form: <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+mx%2Bb ALIGN=MIDDLE  ALT=\"y+=+mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "You are given the slope, m = 4, so you can write:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+4x%2Bb ALIGN=MIDDLE  ALT=\"y+=+4x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now you need to find the value of b, the y-intercept. This is easily done because you were also given a point (2, 8) through which the line passes. <BR>\n" );
document.write( "So you substitute the (x, y) of the given popint (2, 8) into the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+4x%2Bb ALIGN=MIDDLE  ALT=\"y+=+4x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for b.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8+=+4%282%29+%2B+b ALIGN=MIDDLE  ALT=\"8+=+4%282%29+%2B+b\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8+=+8+%2B+b ALIGN=MIDDLE  ALT=\"8+=+8+%2B+b\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 8 from both sides of the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+b ALIGN=MIDDLE  ALT=\"0+=+b\"   DISABLED_style= \"max-width:90%; height:auto;\" >  So b = 0. Now you can write the final equation of the line whose slope is 4 and which passes through the point (2, 8).\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+4x ALIGN=MIDDLE  ALT=\"y+=+4x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Just out of curiosity, let's see what that looks like on a graph:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-5%2C5%2C-5%2C10%2C4x%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-5%2C5%2C-5%2C10%2C4x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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