document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=284906>Question 284906</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this equation: f(x)=-5x^2+50x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #206643 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=206643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve it in what way?\r<BR>\n" );
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document.write( "Do you have additional information?\r<BR>\n" );
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document.write( "What you have posted isn't enough.\r<BR>\n" );
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document.write( "Write back........................\r<BR>\n" );
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document.write( "You said:\r<BR>\n" );
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document.write( "\"The height in meters of a ball can be modeled by the function  f(x)=-5x^2+50x, where x is the time in seconds after it is hit.<BR>\n" );
document.write( "All other informaton sorry.\"\r<BR>\n" );
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document.write( "There isn't enough information but I believe you need to find x.\r<BR>\n" );
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document.write( "Let f(x) = 0 and solve for x\r<BR>\n" );
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document.write( "0 = -5x^2 + 50x\r<BR>\n" );
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document.write( "0 = 5x(-x + 10)\r<BR>\n" );
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document.write( "5x = 0\r<BR>\n" );
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document.write( "x = 0/5\r<BR>\n" );
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document.write( "x = 0....I think this is the time before the ball is dropped.\r<BR>\n" );
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document.write( "-x + 10 = 0\r<BR>\n" );
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document.write( "-x = -10\r<BR>\n" );
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document.write( "x = -10/-1\r<BR>\n" );
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document.write( "x = 10 seconds.  It will take the ball 10 seconds to hit the ground after it is dropped.\r<BR>\n" );
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document.write( "Is this what you seeK?\r<BR>\n" );
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