Y-Axis
The origin 0 0 so important in direct variation since it is the reference point.
It means the coordinate (0, 0) - or in three dimensions, (0, 0, 0). That is, the origin, or starting point, of the coordinate system.
What is used to locate a point in a coordinate plane
x coordinate
The quadrant where a point has a negative x coordinate and a negative y coordinate is located in quadrant 3.
subtracting
If ... the square of (the x-coordinate of the point minus the x-coordinate of the center of the circle) added to the square of (the y-coordinate of the point minus the y-coordinate of the center of the circle) is equal to the square of the circle's radius, then the point is on the circle.
The North Point
The axes of coordinate planes intersect at the point of origin.
It is at the point of origin whose coordinate is (0, 0)
coordinate, or coordinate value
A point's y coordinate is its vertical position, or how high or low it is.