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# Xcoor

last edited by 10 years, 2 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()   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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