Answer:
In 3 dimensions, we use the notation for points (x, y, z)
Then the point:
(0, -1, -3)
has:
x = 0
y = -1
z = -3
In a 3 dimensional space, the rectangular coordinates are as follows.
The one that goes up is Z
The one that goes to the right is X.
The one that "comes out" or is normal to the page, is Y.
Below you can see the point in a 3D-space:
Where: Blue = Z
Green = Y
Red = X
