### Home > PC3 > Chapter 7 > Lesson 7.2.3 > Problem7-102

7-102.
1. Consider the function a(x) = 3x − 5. Homework Help ✎

1. What is the average rate of change of a(x) over the interval 2 ≤ x ≤ 6?

2. Repeat part (a) for the interval 5 ≤ x ≤ 7.

3. What can you conclude from your answers to parts (a) and (b)? Why?

$\frac{a(6)-a(2)}{6-2}$

Think about the graph of y = a(x).
What type of curve is it?