document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=189777>Question 189777</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope, if it exists, of the line containing the pair of points.<BR>\n" );
document.write( "(9,2) and (10,-5) </SPAN>\n" );
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document.write( "Given points: (9,2) & (10,-5)<BR>\n" );
document.write( "where<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28x%5B1%5D=9%2Cx%5B2%5D=10%2Cy%5B1%5D=2%2Cy%5B2%5D=-5%29 ALIGN=MIDDLE  ALT=\"system%28x%5B1%5D=9%2Cx%5B2%5D=10%2Cy%5B1%5D=2%2Cy%5B2%5D=-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Via Slope-Point Form, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Slope=m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 ALIGN=MIDDLE  ALT=\"Slope=m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28-5-2%29%2F%2810-9%29=-7%2F1=highlight%28-7%29 ALIGN=MIDDLE  ALT=\"m=%28-5-2%29%2F%2810-9%29=-7%2F1=highlight%28-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, answer\r<BR>\n" );
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document.write( "*If you want to see the graph, let's check the intercepts.\r<BR>\n" );
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document.write( "Via Slope-Intercept Form, <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( "Thru point (9,2):<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2=%28-7%29%2A%289%29%2Bb ALIGN=MIDDLE  ALT=\"2=%28-7%29%2A%289%29%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2=-63%2Bb ALIGN=MIDDLE  ALT=\"2=-63%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=2%2B63=red%2865%29 ALIGN=MIDDLE  ALT=\"b=2%2B63=red%2865%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, y-Intercept\r<BR>\n" );
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document.write( "Another point (10,-5),(should be the same):<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5=%28-7%29%2810%29%2Bb ALIGN=MIDDLE  ALT=\"-5=%28-7%29%2810%29%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5=-70%2Bb ALIGN=MIDDLE  ALT=\"-5=-70%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=-5%2B70=red%2865%29 ALIGN=MIDDLE  ALT=\"b=-5%2B70=red%2865%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, y-Intercept\r<BR>\n" );
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document.write( "We let Fy=0, to get x-Intercept:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=%28-7%29%28x%29%2B65 ALIGN=MIDDLE  ALT=\"0=%28-7%29%28x%29%2B65\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7x=75 ALIGN=MIDDLE  ALT=\"7x=75\"   DISABLED_style= \"max-width:90%; height:auto;\" > ----> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%287%29x%2Fcross%287%29=65%2F7 ALIGN=MIDDLE  ALT=\"cross%287%29x%2Fcross%287%29=65%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28x=65%2F7%29 ALIGN=MIDDLE  ALT=\"red%28x=65%2F7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, x-Intercept\r<BR>\n" );
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document.write( "Therefore, your Line Eqn ----> <font color=blue>y=-7x+65</font>\r<BR>\n" );
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document.write( "Having <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Slope=m=-7%2F1=DELTA%28y%29%2FDELTA%28x%29=%28up%2Adown%29%2F%28let%2Aright%29 ALIGN=MIDDLE  ALT=\"Slope=m=-7%2F1=DELTA%28y%29%2FDELTA%28x%29=%28up%2Adown%29%2F%28let%2Aright%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "From y-Intercept (0,65):\r<BR>\n" );
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document.write( "Next point,<BR>\n" );
document.write( "X:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0%2Bred%281%29=1 ALIGN=MIDDLE  ALT=\"0%2Bred%281%29=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Y:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=65%2Bred%28-7%29=58 ALIGN=MIDDLE  ALT=\"65%2Bred%28-7%29=58\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<font color=blue>(1,58)</font>\r<BR>\n" );
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document.write( "Next point,<BR>\n" );
document.write( "X: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Bred%281%29=2 ALIGN=MIDDLE  ALT=\"1%2Bred%281%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Y: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=58%2Bred%28-7%29=51 ALIGN=MIDDLE  ALT=\"58%2Bred%28-7%29=51\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<font color=blue>(2,51)</font>\r<BR>\n" );
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document.write( "Next point,<BR>\n" );
document.write( "X: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Bred%281%29=3 ALIGN=MIDDLE  ALT=\"2%2Bred%281%29=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Y: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=51%2Bred%28-7%29=44 ALIGN=MIDDLE  ALT=\"51%2Bred%28-7%29=44\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<font color=blue>(3,44)</font>\r<BR>\n" );
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document.write( "You can do the other points, and from what we gathered we'll see the graph,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28500%2C500%2C-5%2C15%2C-10%2C80%2Cgrid%281%29%2Cgraph%28500%2C500%2C-5%2C15%2C-10%2C80%2C-7x%2B65%29%2Cblue%28circle%2865%2F7%2C0%2C.20%29%29%2Cblue%28circle%280%2C65%2C.20%29%29%2Cgreen%28circle%283%2C44%2C.15%29%29%2Cgreen%28circle%283%2C44%2C.12%29%29%2Cgreen%28circle%282%2C51%2C.15%29%29%2Cgreen%28circle%282%2C51%2C.12%29%29%2Cgreen%28circle%281%2C58%2C.15%29%29%2Cgreen%28circle%281%2C58%2C.12%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ----> Slope in <font color=green>GREEN dots</font>\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font>\r<BR>\n" );
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document.write( " </SPAN>\n" );
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