Concept explainers
To give an example from the real-world situation that models with a horizontal line. Find the rate of change for the same example.
Explanation of Solution
Consider an example, the cost of pen is
The price for each pen is
Consider the following table.
Number of pens sold | Price of each pen |
Plot the graph as follows.
The graph showing the model with the horizontal line.
Clearly the slope of the line is horizontal line.
Formula used: The slope between two points
Determine the slope between two points
The slope between two points
Calculate the slope between two points
The slope between two points
Similarly, the slope between the other points is
The rate of change for the situation is same, that is
Chapter 5 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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