document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1037212>Question 1037212</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At a price of $3.10 a gallon, the weekly demand for gas is 42 gallons.  If the price rises to $3.25 a gallon, the demand drops to 39 gallons.  Find the formula for quantity of gas demanded in terms of “p”, the price per gallon, assuming the demand is linear. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #651939 by </B><A HREF=/tutors/aboutme.mpl?userid=Aldorozos><B>Aldorozos(172)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Aldorozos><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=651939\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Equation of a line when we have two points on the line: y-y1 = [(x2-x1)/(y2-y1]/(x-x1)<BR>\n" );
document.write( "http://www.coolmath.com/algebra/08-lines/12-finding-equation-two-points-01\r<BR>\n" );
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document.write( "y-42  = [(3.25 -3.10)/39-42](x-3.1)<BR>\n" );
document.write( "y-42 = .15/(-3) *(x-3.1)<BR>\n" );
document.write( "y-43 = -.05(x-3.1)This is an equation of a line. <BR>\n" );
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