Question 197107
Estimate the instantaneous rate of change for the function y = x2 at the following x values: 
i.x = 1 
ii.x = 2 
iii.x = 3 
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y' = 2x
m at x=1: 2
m at x=2: 4
m at x=3: 6
m is the slope, which is the rate of change.
The values are exact.  I don't know of a way to estimate them.