The Lesson
The origin is where the
xaxis and
yaxis meet on a
graph.
The image below shows what we mean by the origin:
The origin is often denoted by the letter
O.
The Oxford English Dictionary defines the origin as "a fixed point from which measurement or motion commences; specifically the point of intersection of the axes in Cartesian coordinates."
The Cartesian Coordinates of the Origin
The
Cartesian coordinate of the origin is (0, 0).
This is because the value of the xaxis is 0 and the value of the yaxis is 0.
This means the
xcoordinate is 0 and the
ycoordinate is 0.
The Origin on A Number Line
The origin also refers to 0 on a
number line.
Note: The xaxis and yaxis are number lines. The origin is found at 0 on both axes.
What's in a Name?
Origin means "start" or "beginning".
When you count on a number line, you start from 0.
When you define a point with Cartesian coordinates, you start from the origin.
Imagine you wanted to find the point
(2, 4). Starting from the origin:

go 2 across (across the xaxis)

go 4 up (up the yaxis)