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The graph below plots a function f(x):

If x represents time, the average rate of change of the function f(x) in the first three seconds is ___.

The graph below plots a function f(x): If x represents time, the average rate of change-example-1

2 Answers

4 votes
I think the slope would be 3/2. I'm not entirely sure
User Avinash Babu
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8.6k points
2 votes

Answer:

If x represents time, the average rate of change of the function f(x) in the first three seconds is 40.

Explanation:

We know that the average rate of change which is also know as a slope of a function from x=a to x=b is calculated by the formula:


Rate\ of\ change=(f(b)-f(a))/(b-a)

Here we are asked to find the average rate of change between x=0 to x=3 ( i.e. in the first three seconds)

It is calculated as follows:


Rate\ of\ change=(f(3)-f(0))/(3-0)\\\\\\Rate\ of\ change=(220-100)/(3)\\\\\\Rate\ of\ change=(120)/(3)\\\\\\Rate\ of\ change=40

User JoeCamel
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