Objective+7-+S2+Applied

__Objective 7- Grade 10 Applied__ One version of the definition of domain is: "The domain of a function describes all possible x-values of a funtion. This will either be finite (limited values) or infinite (unlimited values)." One version of the definition of range is: "Range is dependant on the domain, as it is any y-value." ex. Give the domain and range of the following: { (-1,2), (3,2), (-1,3) } d= {-1,3} r= {2,3} To find the domain and range from a graph you have to decided what all possible values x and y could be. __Example__: Find the domain and range of this line. To find the domain of this line, you look at the graph and decide possible values x could be. Therefore D= [2,5] *This means that your x-value can be anything in between and including 2 and 5.

To find the range of this line, you look at the graph and decide all possible values y could be. Therefore R= [1,4] *This means that your y-value can be anything in between and including 1 and 4.

__Example 2:__ Find the domain and range of the function graphed below. The domain of this line would be: D= [-2, 3] The range of this line would be: R= [3, -2]