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You can put this solution on YOUR website!
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\n" ); document.write( "h(t) = -16t^2 + 64t + 63
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=-16, b=64, and c=63
\n" ); document.write( "---
\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "-16 64 63
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "this quadratic has two real roots (the t-intercepts), which are:
\n" ); document.write( "t = -0.817356917
\n" ); document.write( "t = 4.81735692
\n" ); document.write( "---
\n" ); document.write( "the negative root does not fit the problem statement, so use the positive root
\n" ); document.write( "---
\n" ); document.write( "judging from the value of the gravitational acceleration constant:
\n" ); document.write( "the time units are seconds, and the height units are feet
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "at t = 4.81735692 seconds after being thrown, the rock hits the ground
\n" ); document.write( "---
\n" ); document.write( "the quadratic vertex is a maximum at: ( t= 2, h= 127 )
\n" ); document.write( "---
\n" ); document.write( "at t = 2 seconds the rock reaches its maximum height of 127 feet
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "