document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188040>Question 188040</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a.	Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find the equation of the line for the demand equation. Write your answer in the form p = mx + b. (Hint: Write an equation using two points in the form (x,p)).\r<BR>\n" );
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document.write( "I really need assistance with this problem.  I would really appreciate any help you can offer me in solving this problem. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140978 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=140978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Tahoma\" size=1.5><BR>\n" );
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document.write( "Take given: (x1,p1)=> (42,$20);; (x2,p2)=> (52,$10)<BR>\n" );
document.write( "We get the Slope via Point Slope Form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28m=%28p%5B2%5D-p%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29%29 ALIGN=MIDDLE  ALT=\"system%28m=%28p%5B2%5D-p%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substituting,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%2810-20%29%2F%2852-42%29=-10%2F10=%28red%28-1%29%29 ALIGN=MIDDLE  ALT=\"m=%2810-20%29%2F%2852-42%29=-10%2F10=%28red%28-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thru point (42,20) via Slope-Intercept Form, y=mx+b  ==> p=mx+b<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20=%28-1%29%2842%29%2Bb ALIGN=MIDDLE  ALT=\"20=%28-1%29%2842%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=20=-42%2Bb ALIGN=MIDDLE  ALT=\"20=-42%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=20%2B42=62 ALIGN=MIDDLE  ALT=\"b=20%2B42=62\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Price (Y) Intercept\r<BR>\n" );
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document.write( "*Also the same when you try point (52,10) for the Price Intercept.\r<BR>\n" );
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document.write( "It follows ==> <font color=red>p=-x+62</font>, Answer\r<BR>\n" );
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document.write( "We see graph,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28500%2C500%2C-5%2C66%2C-5%2C77%2Cgrid%281%29%2Cgraph%28500%2C500%2C-5%2C66%2C-5%2C77%2C-x%2B62%29%2Cblue%28circle%2842%2C20%2C.5%29%29%2Cgreen%28circle%2852%2C10%2C.5%29%29%2Cgreen%28locate%2832%2C12%2Cx%5B2%5D%2852%29=p%5B2%5D%2810%29%29%29%2Cred%28locate%2844%2C23%2Cx%5B1%5D%2842%29=p%5B1%5D%2820%29%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font> </SPAN>\n" );
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