F(x) = 3x – 5. Find the average rate of change of the function between x = 3 and x = 7.

Given:

The function is:

To find:

The average rate of change of the function between x = 3 and x = 7.

Solution:

We have,

For ,

For ,

The average rate of change of the function f(x) between x = a and x = b is:

The average rate of change of the function between x = 3 and x = 7 is:

Therefore, the average rate of change of the function between x = 3 and x = 7 is 3.

not sure but it may be b, as i said i'm not sure.

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.