Question 1050512
The height of an object off the ground, h (in feet) t seconds after it is launched into the air is given by
h(t) = &#8722;16t2 + 128t,    0 &#8804; t &#8804; 8.
Find the average rate of change of h over the interval 
[4, 8].
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Find h(8)
Subtract h(4)
Divide by 4.