SOLUTION: For y=x^2, find the average rate of change as a) x changes from 1 to 3 b) x changes from 2 to 5

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Question 254702: For y=x^2, find the average rate of change as
a) x changes from 1 to 3
b) x changes from 2 to 5
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
The average rate of change formula is
(i) %28f%28b%29-f%28a%29%29+%2F+%28a-b%29
--
For y=x^2, find the average rate of change as
a) x changes from 1 to 3
using (i) we get
%28f%283%29-f%281%29%29+%2F+%283-1%29
which is
%289-1%29+%2F+%282%29
or
4
--
b) x changes from 2 to 5
using (i) we get
%28f%285%29-f%282%29%29+%2F+%285-2%29
which is
%2825-4%29+%2F+%283%29
or
7