document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=798319>Question 798319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2. Use y= -0.017x^2 + 0.98x + 0.33 to write the quadratic equation that arises determining when the ball is 10 yards above the ground.\r<BR>\n" );
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document.write( "b. Rewrite the equation in standard form and simply if possible.\r<BR>\n" );
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document.write( "c. What does the graph tell you about the number of solutions to this equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #482158 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=482158\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If x is time and y is height above ground, <BR>\n" );
document.write( "then directly using y=10, simplifying and using solution to quadratic equation, <BR>\n" );
document.write( "x=12.6 or x=45.  I omit showing those steps.  \r<BR>\n" );
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document.write( "The parabola has  a maximum and opens downward.  \r<BR>\n" );
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document.write( "You can complete the square to convert y into standard form.\r<BR>\n" );
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document.write( "If rendering works correctly, the graph should appear like,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-10%2C65%2C-10%2C30%2C-0.017x%5E2+%2B+0.98x+%2B+0.33%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C65%2C-10%2C30%2C-0.017x%5E2+%2B+0.98x+%2B+0.33%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Generally, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=ax%5E2%2Bbx%2Bc ALIGN=MIDDLE  ALT=\"y=ax%5E2%2Bbx%2Bc\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "For <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0 ALIGN=MIDDLE  ALT=\"y=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-b%2B-+sqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x=%28-b%2B-+sqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Tell me if you need to see more steps. </SPAN>\n" );
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