Final answer:
The average rate of change of a function g from x1 to x2 is defined as (g(x2) - g(x1)) / (x2 - x1). It measures how much the function g changes on average between the two points x1 and x2.
Step-by-step explanation:
The average rate of change of a function g from x1 to x2 is defined as:
(g(x2) - g(x1)) / (x2 - x1)
Where x1 ≠ x2. This formula measures how much the function g changes on average between the two points x1 and x2.
For example, if we have a function g(x) = 3x + 5, and we want to find the average rate of change between the points x = 2 and x = 4, we plug the values into the formula:
(g(4) - g(2)) / (4 - 2) = (3(4) + 5) - (3(2) + 5) / (4 - 2) = (12 + 5) - (6 + 5) / 2 = 17 - 11 / 2 = 6 / 2 = 3