Answer:
7.5
Step-by-step explanation:
For function f(x), the average rate of change between x=a and x=b is given by ...
average rate of change = (f(b) -f(a))/(b -a)
For your function, this will be ...
average rate of change = ((2^5 +3) -(2^1 +3))/(5 -1) = (35 -5)/4
average rate of change = 7.5
