document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1191997>Question 1191997</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The height, h meters, of an infeild fly ball t secnds after being hit is given by the formula h=30t-5t^2, (hint: change the equation to factor form)<BR>\n" );
document.write( "a. How long does it take that ball to reach its heightest point<BR>\n" );
document.write( "b. How high will the ball reach?<BR>\n" );
document.write( "c. Foe how long was the ball in the air?<BR>\n" );
document.write( "d. After how many seconds does the ball hit the ground? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #823863 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=823863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> h(t)=-5t^2+30t<BR>\n" );
document.write( "vertex for this negative quadratic is where t=-b/2a=-30/-10 or t=3 seconds at highest point.<BR>\n" );
document.write( "the height is -45+90=45 m<BR>\n" );
document.write( "It will be in the air 6 seconds, since this is symmetric<BR>\n" );
document.write( "It will hit the ground in 6 seconds. <BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );