... >> Mathematics >> Algebra >> Horizontal Or Vertical Line
Highest Rated Sign
Video id:  #2987 (enlarge) 
Post date:  7/27/2013 
Posted by:  ToddBonheyo 
Rating:  
0 ratings 
Horizontal Or Vertical Line

Definition: A horizontal line i passing through k on the yaxis is precisely a plot of all solutions (x, y) of the equation y = k; i.e., i is the graph of y = k. A vertical line m passing through h on the xaxis is precisely a plot of all solutions (x, y) of the equation x = h; i.e., m is the graph of x = h.
Source: "Precalculus" by David H. Collingwood and K. David Prince at the University of Washington

Example: A horizontal line that is 3 units above the xaxis is written as the equation y=3. A vertical line that is 5 units to the left of the yaxis is written as the equation x=5.
 There are no comments for this topic.