This is the coordinate plane shown below:
The horizontal axis is x-axis and the vertical axis is the y-axis.
See that the coordinate plane is broken down into 4 quadrants.
• Top Right - 1st quadrant
,
• Top Left - 2nd quadrant
,
• Bottom Left - 3rd quadrant
,
• Bottom Right - 4th quadrant
Now, we can plot a pair of point (x,y) on the coordinate plane.
We can have 4 types of points:
• (x positive, y positive) >>> falls in 1st quadrant
,
• (x negative, y positive) >>> falls in 2nd quadrant
,
• (x negative, y negative) >>> falls in 3rd quadrant
,
• (x positive, y negative) >>> falls in 4th quadrant
Let's plot 4 types of points in each coordinate and show in coordinate plane.
Let's plot:
A=(2,2)
B=(-2,2)
C=(-2,-2)
D=(2,-2)
In coordinate plane, they are: