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Another name for the Cartesian coordinate system is?
plane xy
Another name for the Cartesian coordinate system is the xy-plane?
True.
Do find the x- and y-coordinates of any point on the xy-plane.?
To find the x-coordinate of a point on the xy-plane, you look at the horizontal distance of the point from the y-axis. The y-coordinate of a point on the xy-plane is the vertical distance of the point from the x-axis.
Find the coordinate of X if XY equals 1 and the coordinate of Y is 0?
If Y = 0 then there is no value of X such that XY = 1.
What is the vertical planes?
It would depend upon your coordinate system. But in the regular Cartesian (rectangular) coordinate system you used in high school, the x axis is left to right and the y axis is up and down. So the vertical plane would be the xy plane. If you are in three dimensions, the x axis is forward and backwards (coming out of the page toward and away from you), the y axis is left and right, and the z axis is up and down. So you would have two vertical planes--the xz plane and the yz plane.
