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Unformatted text preview: Math 1310 Class Notes Section 3.1, Page 1 of 8 Math 1310 Section 3.1 Functions Basic Ideas The rest of this course deals with functions. A function f is a rule that assigns to each element in a set A one and only one element of a set B . The set A is called the domain of f . Sets A and B are sets of real numbers. Functions are so important that we use a special notation when working with them. Well write f ( x ) to denote the value of function f at x . We read this as f of x . The range of a function is all of the possible values of the function as x varies through the numbers in the domain. We can use letters other than f to denote a function, so you may see a function such as ). ( or ) ( ), ( x P x h x g Mappings We can show a relationship between two sets of numbers using a mapping . We can answer several questions using a mapping, such as: Does the mapping represent a function? If so, what is the domain of the function?...
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This note was uploaded on 02/22/2012 for the course MATH 1310 taught by Professor Marks during the Summer '08 term at University of Houston.
 Summer '08
 MARKS
 Sets

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