Can you see that the domain is restricted to the set of numbers ? Since you can’t work less than zero hours or more than 24 hours in a day, the only numbers in the domain are the numbers between and including 0 to 24. If you were to graph the rule, all the points on the graph would consists of pairs of numbers such as (number of hours worked, salary for hours worked). If you are trying to calculate your potential salary, the rule is Salary = $10 times the number of hours you worked in a day. All functions have a constraint on the rule: the rule can link a number in the domain to just one number in the range.įor example, suppose you are interviewing for a job at a telemarketing firm that pays $10 per hour for as many hours as you wish to work, and the firm pays you at the end of each day. The value of the elements in the range depends on the value of the elements in the domain. The elements in the domain are independent. This rule links one set of numbers (called the domain) to a second set of numbers (called the range). Recall that first and foremost, a function is a rule. Hopefully, this review will take some of the mystique away from these functions.įirst let’s review the definition of a function. Many students in high school and in college have a difficult time with the concept of inverse functions: what they are, when they exist, how they are used, how to calculate them, how to graph them, and how to interpret their findings. ON INVERSE FUNCTIONS:INTRODUCTION ON INVERSE FUNCTIONS: INTRODUCTION
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |