document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131657>Question 1131657</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Brooks Bros. Company purchased a piece of equipment and used the straight-line depreciation method. The company books showed that the book value was $14,475 at the end of the third year and $8275 at the end of the seventh year.<BR>\n" );
document.write( "(a) Find the linear equation B(x) relating book value and number of years. <BR>\n" );
document.write( "B(x) = </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #748834 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=748834\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> these are ordered pairs (3, 14475) and (7, 8275)<BR>\n" );
document.write( "the slope is -6200/4=-1550<BR>\n" );
document.write( "point-slope formula y-y1=m(x-x1) m slope and (x1, y1) point<BR>\n" );
document.write( "y-8275=-1550(x-7)<BR>\n" );
document.write( "y=-1550x+10850+8275<BR>\n" );
document.write( "B(x)=-1550x+19125  ANSWER<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-10%2C10%2C-5000%2C25000%2C-1550x%2B19125%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C10%2C-5000%2C25000%2C-1550x%2B19125%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );