document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166259>Question 166259</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The national cost C in billions of dollars for dental services can be modeled by the linear equation<BR>\n" );
document.write( "C  = 2.85n + 30.52,<BR>\n" );
document.write( "where n is the number of years since 1990 <BR>\n" );
document.write( "(Health Care Financing Administration, www.hcfa.gov).<BR>\n" );
document.write( "a) Find and interpret the C-intercept for the line.<BR>\n" );
document.write( "b) Find and interpret the n-intercept for the line.<BR>\n" );
document.write( "c) Graph the line for n ranging from 0 through 20.\r<BR>\n" );
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document.write( "If I am not mistaken, are the steps solving for C, and then solving for N ? I am still a bit unclear on how to complete the problem </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122529 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=122529\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The national cost C in billions of dollars for dental services can be modeled by the linear equation<BR>\n" );
document.write( "C = 2.85n + 30.52,<BR>\n" );
document.write( "where n is the number of years since 1990 <BR>\n" );
document.write( "(Health Care Financing Administration, www.hcfa.gov).<BR>\n" );
document.write( "a) Find and interpret the C-intercept for the line.<BR>\n" );
document.write( "Let n = 0; C(0) = 30.52 (cost of dental service in 1990)<BR>\n" );
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document.write( "b) Find and interpret the n-intercept for the line.<BR>\n" );
document.write( "Let C=0: then n = -30.52/2.85 = -10.78..<BR>\n" );
document.write( "Theoretically the dental cost was zero 11 years before 1990<BR>\n" );
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document.write( "c) Graph the line for n ranging from 0 through 20. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C30%2C-10%2C60%2C2.85x%2B30.52%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C30%2C-10%2C60%2C2.85x%2B30.52%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If I am not mistaken, are the steps solving for C, and then solving for N ? I am still a bit unclear on how to complete the problem<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );