document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=50451>Question 50451</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Passes through (7, 6) and (10, 15) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #33540 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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/cgi-bin/show-face.mpl?user=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=33540\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (7, 6) and (10, 15)<BR>\n" );
document.write( "y=mx+b [Use the slope-intercept form of a line]<BR>\n" );
document.write( "Slope = m = (y2-y1)/(x2-x1) [Use the slope formula first]<BR>\n" );
document.write( "Slope = m = (15-6)/(10-7)=9/3 = 3<BR>\n" );
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document.write( "y=mx+b<BR>\n" );
document.write( "(15)=(3)(10)+b [Plug in the values of one point and the slope]<BR>\n" );
document.write( "(15)=30+b [Solve for b]<BR>\n" );
document.write( "15-30=30-30+b<BR>\n" );
document.write( "-15=b [Plug the y-intercept (b) back into the slope-intercept form]<BR>\n" );
document.write( "y=3x-15<BR>\n" );
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document.write( "Check by plugging the points back into (y=3x-15).<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Graphing the equation of the line:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+15%2C+-20%2C+10%2C+3x-15%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+15%2C+-20%2C+10%2C+3x-15%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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