document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173676>Question 173676</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780073533490/algebrahomeworkh>Elementary and intermediate</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 92. Decreasing price. World Auto uses the formula<BR>\n" );
document.write( "P= -3000n + 17,000 to determine the wholesale price for a used Ford Focus, where P is the price in dollars and n is the age of the car in years.\r<BR>\n" );
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document.write( "a) Find the price for a Focus that is 1, 2, or 3 years old.\r<BR>\n" );
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document.write( "b) Find the slope and P-intercept for the line P= -3000n + 17,000.\r<BR>\n" );
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document.write( "c) Interpret the slope and P-intercept.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128540 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=128540\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)...P(1)=-3000(1)+17000=14000<BR>\n" );
document.write( ".....P(2)=-3000(2)+17000=11000<BR>\n" );
document.write( ".....P(3)=-3000(3)+17000=8000<BR>\n" );
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document.write( "b)this is written in y=mx+b format where P=y and x=n   remember m is the slope and b is the y intercept or in our case the P intercept<BR>\n" );
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document.write( "so the slope is -3000 and the P-intercept is 17000<BR>\n" );
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document.write( "c)the slope is the rate of change( every year that goes by the whole sale price loses 3000 dollars in value) and the P intercept is the starting price of the vehicle </SPAN>\n" );
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