Cartesian plane is used as a frame of reference for points in a line. It has two lines that intersects at the center of a page such that they divide a grind page into 4 parts.
If you can remember the concept of number lines, Cartesian plane is made of two number lines, one horizontal and another vertical, where there zero point meets at the center of the page.
The points where this two lines meet is usually referred as the origin.The horizontal line in the Cartesian plane is refered to as the x-axis. The line drawn vertically is usually referred to as the y-axis.
For each axis, a suitable scale is chosen and then marked at equal intervals. The measurements on the axes are called the coordinates.
The coordinates are given as an ordered pair (x,y) with x-coordinate first and y-coordinate second.
The two coordinates are separated by a comma and are placed inside brackets.The planes on which the points lies is called the Cartesian plan .
Example
Write down the coordinates of the following points:
A, B, C, N, M, P, ,L and K.
- A(3,5)
- B(5, -3)
- C(4, -6)
- N(-7, 2)
- M(4, 8)
- P(8, 6)
solution
Related Topics
- Longitudes
- Longitudes and latitudes
- Matrices of Transformation
- Trigonometric ratios
- Fundamental theorem of calculus
- Table of tangents
- Equation of a circle
- Frequency polygons
- Line graphs