# 3-D Coordinates

### Topic Page

3-D Coordinates### Questions

- What is meant by the 3-D Cartesian coordinate system?
- What is a z-coordinate?
- How do I graph the point #(x, y, z) = (7, -5, 3)#?
- What does it mean to say a 3-D coordinate system is right-handed?
- What is the z-axis?
- How do I convert from 3-D Cartesian coordinates to cylindrical coordinates?
- What is the 3-D Cartesian coordinate used for in real life?
- What is meant by the cylindrical coordinates #(7, 30^circ, 9)#?