Concept explainers
To examine: the rate of change changes with respect to the number of pencils bought.
Answer to Problem 1LC
It can be concluded that the rate of change of cost is constant with respect to the number of pencils bought
Explanation of Solution
Given Information:
The table is given with the following data.
Solution:
Cost of Pencils | ||||
Number of pencils | ||||
Cost $ |
Consider the points
To find the rate of change find the slope as following.
Formula used: The slope between the points
Calculations:
To calculate the slope between the points
The slope between the points
To calculate the slope between the points
The slope between the points
To calculate the slope between the points
The slope between the points
Interpretation:
The slope is same in for all the three set of points. The rate of change of cost is remains same with the rate of change of pencils. Therefore, it can be concluded that the rate of change of cost is constant with respect to the number of pencils bought. The rate of change in cost of the pencils is
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