document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1188443>Question 1188443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A stone is tossed from a bridge into the river below. Its path is represented by h = -2t^2 + 7t + 9, where h is height, in metres, and t is time, in seconds.<BR>\n" );
document.write( "Find the maximum height reached by the stone.<BR>\n" );
document.write( "How many seconds does it take to reach the maximum height?<BR>\n" );
document.write( "How many seconds does it take for the stone to reach the water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819536 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52786)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=819536\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "A stone is tossed from a bridge into the river below. Its path is represented by h = -2t^2 + 7t + 9, <BR>\n" );
document.write( "where h is height, in metres, and t is time, in seconds.<BR>\n" );
document.write( "Find the maximum height reached by the stone.<BR>\n" );
document.write( "How many seconds does it take to reach the maximum height?<BR>\n" );
document.write( "How many seconds does it take for the stone to reach the water?<BR>\n" );
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document.write( "The equation in your post, &nbsp;describing the height as a function of time, &nbsp;&nbsp;I S &nbsp;&nbsp;I N C O R R E C T.\r<BR>\n" );
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document.write( "The correct equation is &nbsp;TOTALLY &nbsp;DIFFERENT.\r<BR>\n" );
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document.write( "How this equation is presented in the post, it makes it clear that the person who created / composed this problem, \r<BR>\n" );
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document.write( "is mathematically &nbsp;ILLITERATE &nbsp;and unfamiliar with the corresponding sections of &nbsp;Math and &nbsp;Physics.\r<BR>\n" );
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document.write( "So, &nbsp;solving this problem, &nbsp;in the form as it is presented in the post, &nbsp;is &nbsp;NONSENSE.\r<BR>\n" );
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document.write( "Due to this reason, &nbsp;the response by @MathLover1 is &nbsp;NONSENSE &nbsp;and &nbsp;BAD &nbsp;TEACHING, &nbsp;too.\r<BR>\n" );
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document.write( "To learn the subject, &nbsp;read the lessons\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/word/travel/Introductory-lesson-on-a-projectile-thrown-shot-launched-vertically-up.lesson>Introductory lesson on a projectile thrown-shot-launched vertically up</A> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/word/travel/Problem-on-a-projectile-moving-vertically.lesson>Problem on a projectile moving vertically up and down</A>\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/word/travel/Problem-on-a-toy-rocket-launched-vertically-up--from-the-top-of-a-platform.lesson>Problem on a toy rocket launched vertically up from a tall platform</A>\r<BR>\n" );
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document.write( "Consider these lessons as your textbook, &nbsp;handbook, &nbsp;tutorials and &nbsp;(free of charge) &nbsp;home teacher.<BR>\n" );
document.write( "Read them attentively and learn how to solve this type of problems once and for all.\r<BR>\n" );
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document.write( "Start reading from the very first lesson.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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