A system for graphing the number pairs is called the (a)  

The horizontal line is called (a)  

The vertical line is (a)  

What is the term for x-axis and y-axis together?

(a)  

The point of intersection of the coordinate axes is called the (a)  

What is the term for the division of the coordinate plane?

(a)  

The first number in the pair is the (a)  

The second number in the pair is called the (a)