document.write( "Question 198050: At a recent egg - tossing contest, one student threw an egg 80 feet. Someone in the crowd observed that egg reached a maximum height of 16 feet. What equation could be used to model the path of the tossed egg. \n" ); document.write( "
Algebra.Com's Answer #148632 by arallie(162)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29=-a%28x-h%29%5E2%2Bk\" for trajectories where (h,k)=mid-point and (x,y)=any other point along path
\n" ); document.write( "we know 3 points (0,0)-starting point (40,16)-halfway point and (80,0)-end point
\n" ); document.write( "Substitute
\n" ); document.write( "\"0=-a%280-40%29%5E2%2B16\"
\n" ); document.write( "\"0=-a%281600%29%2B16\"
\n" ); document.write( "\"0=a-.01\"
\n" ); document.write( "\"a=.01\"\r
\n" ); document.write( "\n" ); document.write( "Formula is:
\n" ); document.write( "\"f%28x%29=-.01%28x-40%29%5E2%2B16\"
\n" ); document.write( "\"+graph%28+300%2C+200%2C+0%2C+80%2C+-2%2C+18%2C+-%28.01%29%28x-40%29%5E2%2B16%29+\"
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