Answer:
average rate of change = 7
Explanation:
The average rate of change = [tex] \frac{f(b) - f(a)}{b - a} [/tex]
where:
b is the upper limit = 6
a is the lower limit = -3
f(b) = f(6) = (6)² + 4(6) - 15 = 45
f(a) = f(-3) = (-3)² + 4(-3) - 15 = -18
Substitute with these values in the above equation to get the average rate of change as follows:
average rate of change = [tex] \frac{45-(-18)}{6-(-3)} [/tex] = 7
Hope this helps :)
