| When
referring to a two and three-dimensional plane, a y-axis refers to the
vertical height of a two or three-dimensional object. In the
picture to the right you can see the y-axis plane going up and
down and intersecting with the y-axis and z-axis. A good
example of where the y-axis is used on a computer is on the
mouse. By assigning a value to the
y-axis, when the mouse is moved up or down increasing or
decreasing the y-axis value will allow the computer to know where
the mouse cursor is on the screen. |
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Also see: Axis, X-axis,
Z-axis
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