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Used to show the relationship between two variables?
Line graph is used to show relationship between two variables.
What are variables used for in math?
Variables may be used for a number of different purposes. They may be used to generalise mathematical statements or to model a system of equations to solve.
Why and how are variables used in math?
They are used in place of an unknown number or value.
Which equation shows a linear relationship between the variables stated?
The equation in which the variables appear only to the first power, including in no denominators.
What do the letter x and y stand for?
X and Y do not stand for anything. They are merely letters that represent a variable in an algebraic equation. X is generally used as the first variable, and Y is used as the second variable, to differentiate the difference between two variables so one letter does not need to be used for two variables. In GRAPHS, they stand for the axis line. X is the horizontal axis, and Y is the vertical axis.
