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improper fraction

a fraction whose numerator is greater than the denominator

inconsistent equations

simultaneous equations that have no common solution; the graphs are parallel lines

independent events

in statistics, events such that the outcome of one event does not affect the probability of the occurrence of another event

independent variable

when considering a function, the variable whose value can be chosen

index

in a radical expression, the number that indicates what root is to be taken

inequality

a mathematical statement comparing quantities that are not equal

integer

any member of the set {...-4, -3, -2, -1, 0 ,1, 2, 3, 4,,,}

intercept

in reference to a graph on a rectangular coordinate system, the point where the graph crosses the x axis or the y axis

inverse operation

an operation which "undoes" another operation; addition and subraction; multiplication and division

inverse variation

a relationship between two variables such that their product is constant