document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1144496>Question 1144496</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In our modern era, digital television is a norm, and most homes have HDTVs. HDTVs are usually rectangular in shape and have a standard aspect ratio of 16:9. Please respond to the following questions. (See rubric below.)\r<BR>\n" );
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document.write( "	What do we mean by aspect ratio? <BR>\n" );
document.write( "	In a paragraph or two, at least 100 words, what is an HDTV? Explain the meaning of HDTV. How is an HDTV different from previous ordinary televisions?<BR>\n" );
document.write( "	Derive a formula for the area of the screen of an HDTV as a function of only the height of the screen. <BR>\n" );
document.write( "	Derive a formula for the diagonal of the screen as a function of the height of the screen. <BR>\n" );
document.write( "	Derive a formula for the diagonal of the screen as a function of the area of the screen. <BR>\n" );
document.write( "	Illustrate with a graph the relationship between the diagonal and the area of the screen. Please make sure your graph is appropriately labeled. <BR>\n" );
document.write( "	What is the diagonal if the area is 2,823 cm^2?<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 #801901 by </B><A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><B>CubeyThePenguin(3113)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><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=CubeyThePenguin><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=801901\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> aspect ratio = ratio of width to height\r<BR>\n" );
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document.write( "width = 9x<BR>\n" );
document.write( "length = 16x\r<BR>\n" );
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document.write( "area = (9x)(16x) = 144x^2\r<BR>\n" );
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document.write( "diagonal = sqrt(9x^2 + 16x^2) = xsqrt(337) </SPAN>\n" );
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