Understand and use coordinates in three dimensions
Understand coordinates in 3D
From year 7 you should have been introduced to the ‘Cartesian Coordinate System’, where you have an xaxis and yaxis, you plot a point with an x, and then label the point (3, 5), meaning 3 along the xaxis, and 5 up the yaxis.
We live in a 3D universe, so it's possible to add a third axis to this, the zaxis. If the xaxis and yaxis are horizontal and vertical on paper, then the zaxis is used to say how far ‘into or out of the paper’ the coordinate is.
The axis is sometimes drawn in a few difference ways, but it's just looking at the same graph from different points.
In each case, you read the position of coordinates the same way, and the coordinate position is always written (x, y, z)
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