#24 math problem

If a stone is dropped from a height of 800 feet, then it's height ( in feet ) above the ground is given by the function hit ) = - 16+ for , where t is the time ( in seconds ) . To get an idea of how fast the stone is traveling when it hits the ground , find the averge rate of change of the height on each of the time intervals a ) the average rate of change of the height on the time interval [0, 4] is = b ) [ 1, 4] is = ( ) [ 3. 9, 4] is = d ) [ 3. 9 9 , 4] is = e) [ 3. 999, 4] is = Do not round