document.write( "Question 693944: Joanne tosses an apple seed on the ground. It travels along a parabola with the equation y= -x^2 + 4. Assume the seed was thrown from a height of 4ft. How many feet away from joanne will the apple seed land? Explain.
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Algebra.Com's Answer #427644 by stanbon(75887)\"\" \"About 
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Joanne tosses an apple seed on the ground. It travels along a parabola with the equation y= -x^2 + 4. Assume the seed was thrown from a height of 4ft. How many feet away from joanne will the apple seed land? Explain.
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\n" ); document.write( "\"graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-x%5E2%2B4%29\"
\n" ); document.write( "The ground is the x-axis.
\n" ); document.write( "Solve for the x-intercept.
\n" ); document.write( "Let y = 0
\n" ); document.write( "-x^2+4 = 0
\n" ); document.write( "x^2 = 4
\n" ); document.write( "x = +2 or x = -2.
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\n" ); document.write( "Find the distance from (0,4) to (2,0)
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\n" ); document.write( "distance = sqrt[(2-0)^2 + (0-4)^2] = sqrt(4+16) = sqrt(20) = 2sqrt(5) feet
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\n" ); document.write( "Note: The answer may be 2 ft. if the distance requested is from
\n" ); document.write( "her feet to the seed.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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