| Term | Definition |
|
Counting/Natural #'s |
The numbers used for counting. That is, the numbers 1, 2, 3, 4, etc. |
|
Whole #'s |
The numbers 0, 1, 2, 3, 4, 5, etc. |
|
Integers |
All positive and negative whole numbers (including zero). That is, the set {... , –3, –2, –1, 0, 1, 2, 3, ...}. |
|
X - Axis |
the horizontal axis in a two-dimensional coordinate system such as a graph |
|
Y - Axis |
the vertical axis in a two-dimensional coordinate system such as a graph |
|
Origin |
point of intersection of all axes in a coordinate system. In a plane it has the coordinates (0,0) |
|
Quadrant 1 |
A quarter of a plane surface that is located at the top right of the coordinate system. The x and y value for any point in this quadrant is (positive, positive) |
|
Quadrant 2 |
A quarter of a plane surface that is located at the top left of the coordinate system. The x and y value for any point in this quadrant is (negative, positive) |
|
Quadrant 3 |
A quarter of a plane surface that is located at the bottom left of the coordinate system. The x and y value for any point in this quadrant is (negative, negative) |
|
Quadrant 4 |
A quarter of a plane surface that is located at the bottom right of the coordinate system. The x and y value for any point in this quadrant is (positive, negative) |