document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173806>Question 173806</A>: <I><SPAN STYLE=\"word-break: break-all;\"> killer whales usually swim at a rate of 3.2-9.7 kilometers per hour, though they can travel up to 48.4 kilometers per hour.  Suppose a migrating killer whale is swimming at an average rate of 4.5 kilometers per hour.  The distance d the whale has traveled in t hours can be predicted by the equation d=4.5t.graph the equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #128746 by </B><A HREF=/tutors/aboutme.mpl?userid=nycsub_teacher><B>nycsub_teacher(90)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nycsub_teacher><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=128746\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We need to make a picture of d = 4.5t.\r<BR>\n" );
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document.write( "This will be a straight line because it is a linear equation.  \r<BR>\n" );
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document.write( "All you have to do is select different values for t, multiply those values by 4.5 and this will give you d values to make points.\r<BR>\n" );
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document.write( "When you have enough (t, d) points, graph the line on the coordinate plane.\r<BR>\n" );
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document.write( "I will give you two points and you can find the rest.\r<BR>\n" );
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document.write( "You only need two points to graph a line.\r<BR>\n" );
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document.write( "In your case, I would select four to be more exact.\r<BR>\n" );
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document.write( "Let t = 1\r<BR>\n" );
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document.write( "d = 4.5(1)\r<BR>\n" );
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document.write( "d = 4.5\r<BR>\n" );
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document.write( "The first point is (1, 4.5)\r<BR>\n" );
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document.write( "Graph the point (1, 4.5) on the coordinate plane.  Let t be the horizontal distance and d = the vertical distance on the coordinate plane.\r<BR>\n" );
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document.write( "NEXT: \r<BR>\n" );
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document.write( "Let = 2\r<BR>\n" );
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document.write( "d = 4.5(2)\r<BR>\n" );
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document.write( "d = 9\r<BR>\n" );
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document.write( "The second point to graph on the coordinate plane is (2, 9).\r<BR>\n" );
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document.write( "Can you do the rest?\r<BR>\n" );
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document.write( "Once you have 4 points on the coordinate plane, connect the points with a straight line.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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