It is the abscissa.
If you are talking about the things in the perentheses, (5,-9), they are called ordered pairs. Ordered pairs help you find a location on a coordinate graph.
The Ordered Pairs are 1x20, 2x10, and 5x4.
-1 is a one-dimensional entity. It can have no equivalent in ordered pairs.
They are coordinates that are plotted on the Cartesian plane.
Y is the second number in a set of ordered pairs.
A set of ordered pairs is a relation. Or Just simply "Coordinates"
they are the first set of paired elements
Relationship can also be represented by a set of ordered pairs called a function.
Yes. That's why it is called "ordered".
one
If you are talking about the things in the perentheses, (5,-9), they are called ordered pairs. Ordered pairs help you find a location on a coordinate graph.
coordinates
Ordered pairs are used in graphing, with the x axis first in the pair. Example: (5,7) (x,y)
Cartesian product is the name that refers to the set of the ordered pairs. The Cartesian product of two sets A and B is AB.
Domain
scatter plot.
Not necessarily. x to sqrt(x) is a relation, but (apart from 0) the first component in each pair corresponds to two second components eg (4, -2) and (4, +2). The square root is, nevertheless, a relation, though it is not a function.