document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1127594>Question 1127594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are in a boat 2 miles from the nearest point on the coast. You plan to travel to point Q, 3 miles down the coast and 1 mile inland. You row at 2 miles per hour and walk at 4 miles per hour. \r<BR>\n" );
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document.write( "(a) Write the total time T (in hours) of the trip as a function of the distance x (in miles).<BR>\n" );
document.write( "(b) Determine the domain of the function.<BR>\n" );
document.write( "(c) Use a graphing utility to graph the function. Be sure to choose an appropriate viewing window. <BR>\n" );
document.write( "(d) Find the value of x that minimizes T.<BR>\n" );
document.write( "(e) Write a brief paragraph interpreting these values.\r<BR>\n" );
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document.write( "I am not understanding this problem right now. <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 #744195 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744195\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "You didn't specify what the distance \"x\" is.  I chose it to be the distance from the point on the shore closest to the boat to where the boat lands.<br><BR>\n" );
document.write( "Then the distance rowing is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28x%5E2%2B4%29 ALIGN=MIDDLE  ALT=\"sqrt%28x%5E2%2B4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and the distance walking is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28x-3%29%5E2%2B1%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28x-3%29%5E2%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<br><BR>\n" );
document.write( "Then, with the given rowing and walking speeds, the total time for the trip is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sqrt%28x%5E2%2B4%29%2F2%29%2B%28sqrt%28%28x-3%29%5E2%2B1%29%29%2F4 ALIGN=MIDDLE  ALT=\"%28sqrt%28x%5E2%2B4%29%2F2%29%2B%28sqrt%28%28x-3%29%5E2%2B1%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER a: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+%28sqrt%28x%5E2%2B4%29%2F2%29%2B%28sqrt%28%28x-3%29%5E2%2B1%29%29%2F4 ALIGN=MIDDLE  ALT=\"T+=+%28sqrt%28x%5E2%2B4%29%2F2%29%2B%28sqrt%28%28x-3%29%5E2%2B1%29%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER b: Algebraically, there are no restrictions on the domain of that function.  However, logically the reasonable values for x should be between 0 and 3.<br><BR>\n" );
document.write( "ANSWER c: A window of 0 to 3 for x and 1 to 2 for y produces a good graph.<br><BR>\n" );
document.write( "ANSWER d: The minimum value of the function is when x=1.<br><BR>\n" );
document.write( "ANSWER e: That is for you to do.... </SPAN>\n" );
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