document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155851>Question 155851</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I'm having problems solving this problem. I need to write an equation in either slope-intercept form, or the standard(general)form:\r<BR>\n" );
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document.write( "The proper crutch length for someone who has sustained a leg injury and is x inches tall, is given by: y=0.72x+2 (where y is in inches)<BR>\n" );
document.write( "     a) What is the proper crutch length for someone who is 6 feet tall?<BR>\n" );
document.write( " My answer was: y=0.72(6) + 2<BR>\n" );
document.write( "                  = 4.32 + 2<BR>\n" );
document.write( "                Y= 6.32 if that the correct answer.<BR>\n" );
document.write( " Can you help me solve b,c,& d.\r<BR>\n" );
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document.write( "b) If someone donates a crutch, which is 40 inches long, to a physical therapy clinic, what should be the height of the patient that the clinic who should receive it?\r<BR>\n" );
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document.write( "c) By how much does the length of the crutch increase or decrease for every increase of 1 inch in height of the patient?\r<BR>\n" );
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document.write( "d) Graph the equation for x ranging from 30 inches to 100 inches. Choose a suitable scale.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #114809 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=114809\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Watch your units.<BR>\n" );
document.write( "It'd be tough for a 6 foot patient to use a 6 inch crutch.<BR>\n" );
document.write( "You need to convert the height from feet to inches to use the formula. <BR>\n" );
document.write( "6 feet=72 inches<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.72x%2B2 ALIGN=MIDDLE  ALT=\"y=0.72x%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Let's change the equation to make it more meaningful<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%28PH%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%28PH%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "where CH stands for crutch height (in inches) and PH, patient height (in inches).<BR>\n" );
document.write( "a) PH=72<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%28PH%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%28PH%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%2872%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%2872%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=53.84 ALIGN=MIDDLE  ALT=\"CH=53.84\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b)CH=40<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%28PH%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%28PH%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40=0.72%28PH%29%2B2 ALIGN=MIDDLE  ALT=\"40=0.72%28PH%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.72%28PH%29=38 ALIGN=MIDDLE  ALT=\"0.72%28PH%29=38\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=PH=52.78 ALIGN=MIDDLE  ALT=\"PH=52.78\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c) For every inch of PH, CH changes by 0.72. <BR>\n" );
document.write( "d) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%28PH%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%28PH%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "At 30 inches,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%2830%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%2830%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=23.6 ALIGN=MIDDLE  ALT=\"CH=23.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "At 100 inches,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=0.72%28100%29%2B2 ALIGN=MIDDLE  ALT=\"CH=0.72%28100%29%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CH=74 ALIGN=MIDDLE  ALT=\"CH=74\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28+300%2C+300%2C+-10%2C+110%2C+-10%2C+90%2Cgrid%28+1+%29%2Ccircle%28100%2C74%2C1.8%29%2Ccircle%28+30%2C+23.6%2C+1.8+%29%2Cgreen%28line%28+30%2C23.6%2C100%2C74%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );