Question

The reference point for the coordinate (-2, 3) is _____.
A. (x, y)
B. (0, 0)
C. (2, -3)
D. (3, -2)

Answer 1

the answer is c because you just replace variables of x,y x(-2)+ y(3)

Answer 2

Answer:

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