document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=195854>Question 195854</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Basal energy requirement. The basal energy requirement<BR>\n" );
document.write( "B is the number of calories that a person needs to maintain<BR>\n" );
document.write( "the life process. For a 28-year-old female with a height of<BR>\n" );
document.write( "160 centimeters and a weight of 45 kilograms (kg), B is<BR>\n" );
document.write( "1300 calories. If her weight increases to 50 kg, then B is<BR>\n" );
document.write( "1365 calories. There is a linear equation that expresses B in<BR>\n" );
document.write( "terms of her weight w. Find the equation and find the basal<BR>\n" );
document.write( "energy requirement if her weight is 53.2 kg.<BR>\n" );
document.write( "This question comes from Elementary and Intermediate Algebra, Chapter 3, Section 3.4, problem #9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146862 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=146862\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (45, 1300) and (x2, y2) = (50, 1365).<BR>\n" );
document.write( "Slope a is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 ALIGN=MIDDLE  ALT=\"a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=%281365-1300%29%2F%2850-45%29 ALIGN=MIDDLE  ALT=\"a+=%281365-1300%29%2F%2850-45%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=13 ALIGN=MIDDLE  ALT=\"a+=13\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Intercept is found from equation <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Ax%5B1%5D%2Bb+=+y%5B1%5D ALIGN=MIDDLE  ALT=\"a%2Ax%5B1%5D%2Bb+=+y%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%2A45+%2Bb+=+1300 ALIGN=MIDDLE  ALT=\"13%2A45+%2Bb+=+1300\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=1300-13%2A45 ALIGN=MIDDLE  ALT=\"b=1300-13%2A45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+715 ALIGN=MIDDLE  ALT=\"b+=+715\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "So the equation of that line is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=+13x+%2B+715 ALIGN=MIDDLE  ALT=\"y=+13x+%2B+715\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Now find the Basal value when w = 53.2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+13+%2A+53.2+%2B+715 ALIGN=MIDDLE  ALT=\"y+=+13+%2A+53.2+%2B+715\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+691.6+%2B+715 ALIGN=MIDDLE  ALT=\"y+=+691.6+%2B+715\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+1406.6 ALIGN=MIDDLE  ALT=\"y+=+1406.6\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );