SOLUTION: Find the average rate of change for the function between the given values.
f(x) = 7x3 + 7x2 - 2; from -9 to 8
A. 1071
B. 504
C. 2015/4
D. 4030/17
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-> SOLUTION: Find the average rate of change for the function between the given values.
f(x) = 7x3 + 7x2 - 2; from -9 to 8
A. 1071
B. 504
C. 2015/4
D. 4030/17
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Question 431970: Find the average rate of change for the function between the given values.
f(x) = 7x3 + 7x2 - 2; from -9 to 8
A. 1071
B. 504
C. 2015/4
D. 4030/17
You can put this solution on YOUR website! The average rate of change is f(x2)-f(x1)/(x2-x1)
We have x2 = 8, x1 = -9
f(8) = 7(8)^3 + 7(8)^2 - 2 = 4030
f(-9) = 7(-9)^3 + 7(-9)^2 - 2 = -4538
Therefore the rate of change = (4030 - -4538)/(8 - -9) = 504
Ans: B
The graph of the function is shown below:
