document.write( "Question 700057: A rock is thrown downwards at a rate of 144 feet per second from an initial height of 352. Write the quadratic function that represents this vertical motion. Graph the quadratic equation on the coordinate plane provided. Show all work. Help! I've tried everything! \n" ); document.write( "

Algebra.Com's Answer #431652 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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A rock is thrown downwards at a rate of 144 feet per second from an initial height of 352.
\n" ); document.write( " Write the quadratic function that represents this vertical motion. Graph the quadratic equation on the coordinate plane provided.
\n" ); document.write( ":
\n" ); document.write( "y = -16t^2 - 144t + 352
\n" ); document.write( "y = height in ft
\n" ); document.write( "t = time in sec
\n" ); document.write( ":
\n" ); document.write( "Plot this equation from 0 to 2 seconds
\n" ); document.write( " x | y
\n" ); document.write( "-------
\n" ); document.write( " 0 |352; initial height
\n" ); document.write( ".5 |276
\n" ); document.write( "1.0|192
\n" ); document.write( "1.5|100
\n" ); document.write( "2.0| 0; strikes the ground
\n" ); document.write( ":
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-2%2C+4%2C+-100%2C+500%2C++-16x%5E2+-+144x+%2B+352+%29+\"$ \n" ); document.write( "

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