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Answer 1 · 2017-05-28T07:25:19

The instantaneous rate of change are #=1# and #=26#
The average rate of change is #=8#

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The instataneous rate of change is the derivative

#f(x)=x^3-x+4#

#f'(x)=3x^2-1#

So,

#f´(0)=1# and

#f'(3)=27-1=26#

The average rate of change is

#=(f(3)-f(0))/(3-0)#

#=(28-4)/(3)#

#=24/3=8#