document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=204191>Question 204191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, HCF).  When graphed, the function gives a line with a slope of 1.35.\r<BR>\n" );
document.write( "\n" );
document.write( "If the monthly bill fro 16 HCF is $24.35, what is the monthly bill for 20 HCF? \r<BR>\n" );
document.write( "\n" );
document.write( "I know that linear functions are x+y=z, I need help setting up the problem.  Could you please help me!!!???!!!\r<BR>\n" );
document.write( "\n" );
document.write( "z(monthly cost)= x(HCF)+ y  or \r<BR>\n" );
document.write( "\n" );
document.write( "monthly bill=1.35x + 20     or\r<BR>\n" );
document.write( "\n" );
document.write( "20=1.35x + y                PLEASE HELP!!\r<BR>\n" );
document.write( "\n" );
document.write( "Question is not from a book...it's a quiz question. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #154170 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=154170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the slope (1.35) is the cost (in dollars) of one HCF of water\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "20 HCF is 4 more than 16 HCF so the cost will be 4 * 1.35 or $5.40 more\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "$24.35 + $5.40 = $29.75\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "yes, you could find the function ___ but it isn't necessary </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );