1 answer
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avg rate of change = ( f(3) - f(2) )/(3-2)
= (0 - (-2)/1 = 2
..
the last one:
avg from x = 2 to x = 2.1
avg rate of change = ( f(2.1) - f(2) )/(2.1 - 2)
= (-1.89 - (-2)/(2.1-2)
= 1.1