In which of the following octants is the y-coordinate of a point positive?
I, II, III, IV
I, II, V, VI
III, IV, VII, VIII
I, II, VII, VIII
The y-coordinate of a point is positive in the octants I, II, V and VI
In which of the following octants is the x-coordinate of a point negative?
Which of the following signs of x,y and z coordinates respectively of a point corresponds to octant IV?