Question

Is the 'origin' the center of the graph (0,0) ?

Answer 1

Yes.

Answer 2

Typically yes....but the origin can be defined differently but should be done so explicitly.

Answer 3

ohh...so how can i know how far the point (-5, -12) is ? How do i measure it?

Answer 4

Since the coordinate notation is (x,y).... it's 5 units to the left and 12 units down:Again, that's the typical plane.