document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=53448>Question 53448</A>: <I><SPAN STYLE=\"word-break: break-all;\"> D is a linear function. Customers will purchase 300 toys at $4.75 a piece, and will purchase 1,200 toys at $1.00. Give the domain of D, and solve for D(q) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #36374 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=36374\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D is a linear function. Customers will purchase 300 toys at $4.75 a piece, and will purchase 1,200 toys at $1.00. Give the domain of D, and solve for D(q).<BR>\n" );
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document.write( "You have two points: (300,4.75), (1200,1.00)<BR>\n" );
document.write( "slope=[4.75-1.00]/[300-1200]=[3.75/-900]<BR>\n" );
document.write( "1.00=(-3.75/900)1200+b<BR>\n" );
document.write( "1=-3.75(3/4)+b<BR>\n" );
document.write( "b=1+2.8125<BR>\n" );
document.write( "b=3.8125<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "D=(-3.75/900)q+3.8125<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );