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

7-102.

Consider the function $a(x)=3x-5$. Homework Help ✎

1. What is the average rate of change of $a(x)$ over the interval $2\le x\le6$?

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

2. Repeat part (a) for the interval $5\le x\le7$.

$\frac{a\left(7\right)-a\left(5\right)}{7-5}$

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

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