Difference between cartision system and linear graph with defination and how to do it

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CARTESIAN SYSTEM

A Cartesian coordinate system, also known as rectangular coordinate system, can be used to plot points and graph lines.
The following is an example of rectangular coordinate system.

It is basically, a set of two number lines

The horizontal line is called x-axis and the vertical line is called y-axis

A good real life example of a vertical number line or y-axis is a thermometer.

Notice that it has 4 quadrants.

In quadrant I, x and y are positive

In quadrant II, x is negative, but y is positive

In quadrant III, x and y are negative

In quadrant IV, x is positive, but y is negative

The center, or intersection of the two axis is equal to (0,0)

A point is represented by a pair of numbers (x, y)

x stands for any value on the x-axis and y stands for any value on the y-axis

An example of a point is (1, 5)

Let us now plot some points.

Locate point (2,3).

x = 2 and y = 3

Draw a vertical line at x = 2 and draw a horizontal line at y = 3

Where the two lines meet or intersect, is your point (in red)

LINEAR GRAPH
A linear graph is a graph that explains a linear relationship between the variables. Basically it is a line graph.  
 

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