Concept explainers
Explain why the slope of a vertical line is called ‘undefined’.
The change is x -coordinates of points lying on a vertical line is zero.
Given:
Vertical line
Calculation:
Vertical line is a line which is parallel to y -axis and whose x -coordinates of the points lying on the line is equal. Below, is a graph for the vertical line
Now, slope is the ratio of change in y to the change is x .
Since, for the vertical line, the value for
Hence, the value for
Therefor, we can conclude that the slope of a vertical line is undefined.
Chapter 2 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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