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Xcoor

Page history last edited by LFS 9 years, 8 months ago

Home > GeoGebra Commands -> Point Commands -> Xcoor


Definition: The x-coordinate of a point A is the first number in the ordered pair.   More 
 

GeoGebra is currently 2D. So points are ordered pairs of real numbers.
Example: A=(-3,6.21) means x(A)= -3.6 .
The first number is the horizontal x-coordinate and the second number is the vertical y-coordinate.

 
 GeoGebra InterActivity:    Directions 
 
In the Algebra View (at left), click and leave your mouse on a to see the definition Number a: x(A).
In the Graphics View (at right), click and drag point A and notice how the value of a changes.
Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)
 
 
Syntax Tool Mathcast  PDF GGB GGB Help
x(<Point>)   CASE SENSITIVE - a big x will not work! none YouTube   TeacherTube PDF GGB  
 
 Extra 
 

Note:  This is a pre-defined function. Pre-defined functions need to be entered using parentheses. You must not put a space between the function name and the parentheses.  Pre-defined functions are case sensitive. If you type Y(A) you will get: GeoGebra Error, Invalid Input,... .


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