What does intersection mean in math?


Quick Answer

An intersection in mathematics usually refers to the point where two lines cross each other on a plot, but can also refer to shared numbers in data sets. It is possible for more than two lines to meet at an intersection, and it is also possible for a line to have more than one distinct intersection.

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Full Answer

The term intersection is defined by some sort of common point or space between two or more entities. An intersection between two data sets is a set of all the common numbers. For example, the intersection of the sets {3,4,5} and {4,5,6} is {4,5}, since 4 and 5 are in both sets.

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