document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=458734>Question 458734</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a word problem with a few parts. Can you help me?\r<BR>\n" );
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document.write( "artic glaciers<BR>\n" );
document.write( "owing to global warming the artic ice cap has been breaking up. As a result, there has been an increase in the number of ice bergs floating in the artic ocean. The table gives ab ice berg count \"i\" for various years \" t\". <BR>\n" );
document.write( "T 1970 1980 2000<BR>\n" );
document.write( "i. 400 600 1000 <BR>\n" );
document.write( "a) make a scatrer plot if the data.<BR>\n" );
document.write( "B) fund the slope -intercept form of a line that models the number of icebergs \"i\" in year \"t\". Interpret the slope of this line.<BR>\n" );
document.write( "C) is the line you found impart b) an exact model for the data in the table?<BR>\n" );
document.write( "D) if current trends continue, what will be the iceberg count in 2005? <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 #314682 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=314682\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> artic glaciers<BR>\n" );
document.write( "owing to global warming the artic ice cap has been breaking up. <BR>\n" );
document.write( "As a result, there has been an increase in the number of ice bergs floating in the artic ocean. <BR>\n" );
document.write( "The table gives ab ice berg count \"i\" for various years \" t\". <BR>\n" );
document.write( "T 1970 1980 2000<BR>\n" );
document.write( "i. 400 600 1000 <BR>\n" );
document.write( "a) make a scatter plot of the data.<BR>\n" );
document.write( "Can't show a scatter plot on this site.<BR>\n" );
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document.write( "Put the T values on the horizontal axis<BR>\n" );
document.write( "Plot a point the appropriate height above each year.<BR>\n" );
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document.write( "B) find the slope -intercept form of a line that models the number of icebergs \"i\" in year \"t\". Interpret the slope of this line.<BR>\n" );
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document.write( "slope = (1000-600)/(2000-1980) = 400/20 = 20/1<BR>\n" );
document.write( "Interpretation: For each addtional year there are 20 more icebergs.<BR>\n" );
document.write( "Equation: i(t) = 20t + 400 where t is the number of years after 1970<BR>\n" );
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document.write( "C) is the line you found impart <BR>\n" );
document.write( "????<BR>\n" );
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document.write( "b) an exact model for the data in the table?<BR>\n" );
document.write( "i(t) = 20t + 400<BR>\n" );
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document.write( "D) if current trends continue, what will be the iceberg count in 2005?<BR>\n" );
document.write( "2005 is 35 years after 1970<BR>\n" );
document.write( "i(35) = 20*35 + 400 = 700+400 = 1100 icebergs<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. \r<BR>\n" );
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