The reference point for the coordinate (-2, 3) is a. (x, y) b. (0, 0) c. (2, -3) d. (3, -2)

Option A

Explanation:

The point of reference for any co-ordinate point is defined by the co-ordinate frame. In a co-ordinate frame there are six degrees of freedom – three Cartesian co-ordinates and three angular co-ordinates.  

Cartesian Co-ordinates – X, Y, Z  

Angular Co-ordinates – Rx, Ry, Rz

Angular co-ordinates basically define the rotation of a co-ordinate point about that axis.  

In the given question, the co-ordinate point is two dimensional. Hence, its reference point would be x,y

Hence, option A is correct

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