Question

How do you find the average rate of change for the function `f(x)= 3sqrtx` on the indicated intervals [4, 25]?

Answer 1

I found `3/7`

Explanation:

To find the avearge rate of change `m_(av)` of your function you need to evaluate your function at the rwo points and then subtract the values and divide by the difference of the given interval vlues as:
`m_(av)=(Deltay)/(Deltax)=(f(25)-f(4))/(25-4)=(3*5-3*2)/(21)=(15-6)/21=9/21=3/7`