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Find the average rate of change for f(x) = x2 + 7x + 10 from x = −5 to x = 2.

User Arika
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2 Answers

1 vote

Answer:

4

Explanation:

User Logan Guo
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3 votes
To find the average rate of change for the function between the two given values of 'x', we need to evaluate the function for each input.

f(-5) = (-5)² + 7(-5) + 10
f(-5) = 0 so the point (-5, 0) is on the parabola

f(2) = (2)² + 7(2) + 10
f(2) = 28 so the point (2, 28) is on the parabola
now we can use the slope formula to find the rate of change between the two points:

(28-0)/(2-(-5)) = (28)/(7) = 4

So the average rate of change between the values of -5 and 2 for the function is 4... Hope this helps.
User Dave Lockhart
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