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Year 9 Interactive Maths - Second Edition


Vertical Lines

A vertical line is parallel to the y-axis and its gradient is undefined.

Therefore, the equation of a vertical line is

x = k

where k is the x-intercept.


Example 10

Sketch the graph of x = 8.

Solution:

Key Terms

vertical line

 

Study Another Topic in Chapter 4: Linear Graphs

Linear Functions ] Gradient of a Straight Line ] Sketch Graphs ] Horizontal Lines ] [ Vertical Lines ] Equation of a Straight Line ] Half-Planes ] Problem Solving Unit ] Projects ] Symbols ] Index ]

 

Study Another Chapter
 

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