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The graph plots a function (x)

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

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

1 Answer

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The rate of change of f(x) with respect to x is the slope of the line.

In the first 3 seconds, the line has the coordinates (0,100) and (3,220).
Therefore the slope is
(220 - 100)/(3 - 0) = 120/3 = 40 units/s.

Answer: 40 units/s
The graph plots a function (x) If x represents time, the average rate of the function-example-1
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