document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205055>Question 1205055</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a ball dropped from the top of the tower. A can be modeled by the function h(t)=-9.8t^2+400 and a ball dropped from the top of tower B can be modeled by the function h(t)=-9.8t^2+200, where t is the time in seconds after the ball is dropped and h(t) is its height in meters at that time.<BR>\n" );
document.write( "what transformation describes the change from the graph A to graph B? <BR>\n" );
document.write( "What does this transformation mean in terms of this situation? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #841672 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3817)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=841672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "Your teacher or textbook author is mistakenly using -9.8 when it should be -4.9<BR>\n" );
document.write( "However, we can imagine this scenario taking place on another planet with a different acceleration of gravity.\r<BR>\n" );
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document.write( "Both functions have -9.8t^2 in them. <BR>\n" );
document.write( "The key difference is the +400 and +200 at the ends of each. <BR>\n" );
document.write( "To go from graph B to graph A, we add 200<BR>\n" );
document.write( "B(t) = -9.8t^2 + 200<BR>\n" );
document.write( "A(t) = B(t) + 200<BR>\n" );
document.write( "A(t) = -9.8t^2 + 200 + 200<BR>\n" );
document.write( "A(t) = -9.8t^2 + 400<BR>\n" );
document.write( "This moves graph B up 200 units.\r<BR>\n" );
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document.write( "In real world context, it means the ball starts 200 meters higher on tower A compared to tower B.<BR>\n" );
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