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a variable that does not depend on another variable for its value (in other words, the variable that represents the input value in a function).
a set of data that can only contain certain, fixed values, such as whole numbers.
the set of all the elements under consideration. The complement of the universal set is the...
the notation (standardised set of rules and symbols) that allows us to describe functions.
a small group of people or items selected by researchers from within a larger population
a flat plane with two perpendicular axes (x-axis and y-axis). The position of...