Functions and Graphs

  • G. D. Buckwell
Chapter
Part of the Macmillan Work Out Series book series (MCWO)

Abstract

Figure 5.1 shows the relationship between the elements of a set Y, and those of a set X. It can be seen that if y ϵ Y and x is the value it is related to in X (shown by an arrow), then y = x + 2. This mathematical ‘rule’ which changes a value of x into a value of y is called a function ormapping. It can also be written f : xx + 2.

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© G. D. Buckwell 1987

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  • G. D. Buckwell

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