By definition we have that the average rate of change of the function is given by:

Substituting values we have:

Rewriting we have:
Answer:
If x represents time, the average rate of change of the function f(x) in the first two seconds is 25.
Answer:
y^3+27
Step-by-step explanation:

*use box method
The answer is D. 30 because you multiple 15 times 2