A.4.1 Learning Goals
- Katie Akesson
- I can explain when a relationship between two quantities is a function.
- I can identify independent and dependent variables in a function, and use words and graphs to represent the function.
- I can make sense of descriptions and graphs of functions and explain what they tell us about situations.
Using the example in the opener about number of bagels and price, lets look at a situation that is a function and one that is not a function. Because there are multiple possible prices when the number of bagels is 6 or greater, price is not a function of the number of bagels bought. Because there is only one best price for a particular number of bagel, best price is a function of the number of bagels bought.