Chapter 9.5, Problem 47CCR

To determine

To find the constant rate of change for the linear function.

Answer to Problem 47CCR

The cost per pound of birdseed is $\$\text{2}\text{.8}$ .

Explanation of Solution

Given information:

The given table is:

  

Calculation:

The constant rate of change for the linear function is:

  $\begin{array}{l}\text{Cost per lb}=\frac{\text{Total y}}{\text{Total x}}\\ \text{Cost per lb}=\frac{\text{67}\text{.2}}{\text{24}}\\ \text{Cost per lb}=\$\text{2}\text{.8}\end{array}$

Hence, the cost per pound of birdseed is $\$\text{2}\text{.8}$ .