Question 973837
Find the average rate of change of h(x)=-2x^4+21x^2-9 between x=-2 and x=4
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h(4) = -2*256 + 21*16 - 9 = -185
h(-2)= -2*16 + 21*4 - 9 = 43
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(-185 - 43)/6
= -38