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I'd seriously appreciate it if anyone could help! :) I'll give Brainliest! Please show your work.

The depth of a river changes after a heavy rainstorm. Its depth, in feet, is modeled as a function of time, in hours. Consider this graph of the function. Write the average rate of change for the depth of the river, measured as feet per hour, between hour 9 and hour 18. Round your answer to the nearest tenth.

Id seriously appreciate it if anyone could help Ill give Brainliest Please show your work The depth of a river changes after a heavy rainstorm Its depth in feet class=

Respuesta :

y2 - y1 / x2 -x1

21 ft - 18 ft / 18hr - 9 hr

3 ft/9hr

1/3 ft/hr

SOLUTION

Your input: find the average rate of change of f(x)=x2 on the interval [1,3].


The average rate of change of f(x) on the interval [a,b] is f(b)−f(a)b−a.


We have that a=1, b=3, f(x)=x2.



Thus, f(b)−f(a)b−a=((3))2−(((1))2)3−(1)=4.


Answer: the average rate of change is 4.

rounded answer.

4.0

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