Question

When you use more than one reference direction to describe an object's position, you are using two

Answer 1

When you use more than one reference direction to describe an object's position, you are using two **coordinates** or a **coordinate system**. In a two-dimensional space, this typically involves the use of an **x-coordinate** and a **y-coordinate** to specify the position of the object with respect to two perpendicular reference directions (axes). In three-dimensional space, you would add a **z-coordinate** to encompass the third dimension. This system allows for precise localization of points in space.