"Abscissa" is another name for "x-coordinate"
"Ordinate" is another name for "y-coordinate".
Look at this graph of the point (3,2)
The 3 is called the abscissa, and the 2 is called the ordinate.
In this picture the red line, which is 3 units long,
is the abscissa and the green line, which is 2 units
long, is the ordinate:
Together the abscissa, 3, and the ordinate, 2, make up
the two coordinates of the point (3,2)
Edwin
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