document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=234369>Question 234369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi<BR>\n" );
document.write( "Need Help with this Question<BR>\n" );
document.write( "Gerald hit his golfball down the fairway. The path the ball followed was parabolic in the shape with the relationship:<BR>\n" );
document.write( "h=2d-1/30^2<BR>\n" );
document.write( "Where h is the height above the ground of the golf ball when it is a horizontal distance d from him. Both h and d are in meters. How far from Gerald did the golf ball land? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172985 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=172985\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Gerald hit his golfball down the fairway.<BR>\n" );
document.write( " The path the ball followed was parabolic in the shape with the relationship:<BR>\n" );
document.write( "h=2d-1/30^2;<BR>\n" );
document.write( "I think the equation should be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+2d ALIGN=MIDDLE  ALT=\"h+=+2d\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F30 ALIGN=MIDDLE  ALT=\"1%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E2 ALIGN=MIDDLE  ALT=\"d%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(What you have, is not a parabola)<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Where h is the height above the ground of the golf ball when it is a horizontal distance d from him. <BR>\n" );
document.write( "Both h and d are in meters. How far from Gerald did the golf ball land?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "When the ball lands h = 0, therefore, we can write it:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1%2F30 ALIGN=MIDDLE  ALT=\"-1%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" >d^2 + 2d = 0<BR>\n" );
document.write( "multiply equation by -30, gets rid of the fraction & changes the signs & you have:<BR>\n" );
document.write( "d^2 - 60d = 0<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Factor out d<BR>\n" );
document.write( "d(d - 60) = 0<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Two solutions<BR>\n" );
document.write( "d = 0 (when the ball is hit)<BR>\n" );
document.write( "and<BR>\n" );
document.write( "d = 60, when the ball lands<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Looks like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-20%2C+65%2C+-10%2C+60%2C+%28-1%2F30%29x%5E2+%2B+2x%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-20%2C+65%2C+-10%2C+60%2C+%28-1%2F30%29x%5E2+%2B+2x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );