Question 888571
Let {{{ t }}} = elapsed time in seconds
{{{ -16t^2 }}} ft / sec2 is the term that pulls the ball back to earth
{{{ 30t }}} ft/sec is the term for the upward velocity
{{{ 4 }}} ft is the term for feet above ground
{{{ h(t) }}} ft is the time-dependent function
{{{ h(t) = -16t^2 + 30t + 4 }}}
Here's the plot:
{{{ graph( 400, 400, -1, 3, -3, 20, -16x^2 + 30x + 4 ) }}}