Sociology of Education - Welsh Government

Introduction to the domain and range. Introduce the idea of . domain . as the set of all real numbers. x . for which a function is defined. Introduce the idea of . range . as the set of real numbers . y (or f(x) ) given as x . varies for which a function is defined.. The teaching of interval notation should be taught explicitly as it is a new feature in the syllabus and would not have been ... ................
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