Point with y = 0 do not move.
It's probably going to have something to do with what you change them to.
If the variables are something continuous, then you should connect the points. For example, if it is your height and weight then since those variables are continuous it is necessary to connect the points plotted on the coordinate graph.
If the reference points are not correct, the location of any coordinate will be incorrect.
the coordinate plane is a map of points
Y-axis is the set of all points with x coordinate zero.
All points whose y-coordinate is twice its x-coordinate.
It describes points on a plane.
Coordinate Plane
Y-axis is the set of all points with x coordinate zero.
points
-- The 'x' coordinate of the midpoint is the average of the 'x'-coordinates of the end-points. -- The 'y' coordinate of the midpoint is the average of the 'y'-coordinates of the end-points.
The coordinate of what?