document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72951>Question 72951</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi i need help on my math problem, thanks for your help\r<BR>\n" );
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document.write( "A snowball is thrown into the air and its path can be modeled by the equation y=-x^2+6x+7 where y represents the verical height in feet and x represents the horizontal distance in feet\r<BR>\n" );
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document.write( "(a) Factor the equation above into two binomials<BR>\n" );
document.write( "(b) Use the factors above to determine how far the snowball was thrown<BR>\n" );
document.write( "(c) Briefly explain how you can use a graph to check your answers in part b<BR>\n" );
document.write( "(d) The ball reaches its highest point after it travels 3 feet horizontally. Use the equation above and show algebraically how to find the height of the ball at this point. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #52288 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=52288\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A snowball is thrown into the air and its path can be modeled by the equation y=-x^2+6x+7 where y represents the vertical height in feet and x represents the horizontal distance in feet <BR>\n" );
document.write( "(a) Factor the equation above into two binomials<BR>\n" );
document.write( "-x^2+6x+7= -(x^2-6x-7)= -(x-7)(x+1)<BR>\n" );
document.write( "(b) Use the factors above to determine how far the snowball was thrown<BR>\n" );
document.write( "The height is zero when x=7 ft so it is on the ground after traveling 7 ft.<BR>\n" );
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document.write( "(c) Briefly explain how you can use a graph to check your answers in part b<BR>\n" );
document.write( "Graph the equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-2%2C10%2C-5%2C30%2C-x%5E2%2B6x%2B7%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-2%2C10%2C-5%2C30%2C-x%5E2%2B6x%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "(d) The ball reaches its highest point after it travels 3 feet horizontally. Use the equation above and show algebraically how to find the height of the ball at this point.<BR>\n" );
document.write( "Find f(3) = -3^2+6*3+7<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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