document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=935938>Question 935938</A>: <I><SPAN STYLE=\"word-break: break-all;\">  The coast-down time y for a car as it drops 10 mph from an initial speed x depends on several factors, such as average drag, tire pressure, and whether the transmission is in neutral. The table gives coast-down time in seconds for a car under standard conditions for selected speeds. <BR>\n" );
document.write( "Initial speed(in mph) 30, 35, 40, 45, 50, 55, 60, 65 <BR>\n" );
document.write( "Coast-down time(in seconds) 29, 26, 22, 19, 17, 15, 14, 13<BR>\n" );
document.write( "Use a quadratic regression feature of a graphing calculator to find the quadratic function g that best fits the data<BR>\n" );
document.write( "g(x)=__x^2-__x+__<BR>\n" );
document.write( "(Round to four decimal places as needed.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #569386 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=569386\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ---<BR>\n" );
document.write( "data:<BR>\n" );
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document.write( "30 29<BR>\n" );
document.write( "35 26<BR>\n" );
document.write( "40 22<BR>\n" );
document.write( "45 19<BR>\n" );
document.write( "50 17<BR>\n" );
document.write( "55 15<BR>\n" );
document.write( "60 14<BR>\n" );
document.write( "65 13<BR>\n" );
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document.write( "y = 0.01023809524xx - 1.436904762x + 63.18452381<BR>\n" );
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document.write( "answer:<BR>\n" );
document.write( "y = 0.0102xx - 1.4369x + 63.1845<BR>\n" );
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document.write( "Free algebra tutoring live chat:<BR>\n" );
document.write( "https://sooeet.com/chat.php?gn=algebra<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
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document.write( "Solve quadratic equations with quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
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document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );