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•	A rectangular or Cartesian plane consists of two number lines intersecting at right angles at the point $O$, known as the origin.
•	The horizontal axis is called the $x$-axis, having an equation of $y=0$.
•	The vertical axis is called the $y$-axis, having an equation of $x=0$.
•	Each point $P$ in the plane is located by an ordered pair $\left( x,y \right)$. 
We say that&nbsp;$P$ has coordinates $\left( x,y \right)$.

•	A rectangular or Cartesian plane consists of two number lines intersecting at right angles at the point $O$, known as the origin.

•	The horizontal axis is called the $x$-axis, having an equation of $y=0$.

•	The vertical axis is called the $y$-axis, having an equation of $x=0$.

•	Each point $P$ in the plane is located by an ordered pair $\left( x,y \right)$.  

We say that $P$ has coordinates $\left( x,y \right)$. 

Recall what is a rectangular or Cartesian plane

Recall what is a rectangular or Cartesian plane

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