Topic 3 - graphs or symbols Words provide a descriptive...

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*VARIABLES AND FUNCTIONS* In this topic you began your exploration of variables and functions. A variable is some quantity that changes, or it can be the letter that represents the changing quantity. A function exists when two variables have a dependent relationship. Changes in the independent variable cause changes in the dependent variable in a systematic way. The set of values for the independent variable is the domain of the function. The set of values for the dependent variable is the range of the function **You can represent the functional relationship between variables by using words, tables,
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Unformatted text preview: graphs, or symbols. Words provide a descriptive version of the situation and the relationship. The cost of roses from Flower Power depends on the number of roses purchased. Symbols provide a way to write a function rule to represent the relationship. Graphs provide a visual illustration of the dependency between the variables. Tables provide a numeric representation of the relationship between the variables. Cost of Roses from Flower Power Number ordered Process Cost in dollars 12 60 + 0.50(12)66 24 60 + 0.50(24)72 36 60 + 0.50(36)78 32 60 + 0.50(32)76 43 60 + 0.50(43)81.50...
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