Answer:
A. {-6,0,9} but in order of domain it's {9,0,-6}
Explanation:
There's two ways of finding the range;
Way #1: The traditional method
- In the traditional method you substitute x for all the numbers in the domain
- When substituting you replace x and solve it like a regular equation (so for example for -3(-1) + 6 = 9 so y=9 when x equals to 2 or f(-1)= 9) to find y
- After substituting your y-values or the range (in order from least to greatest in domain or x-values) is {9,0,-6}
Way #2: The graphing calculator method
- Using a graphing calculator you use the table function
- Turn on the calculator press the button "Y=" place the function -3x+6
- Hit "2nd" then "Graph" to get the table
- Look at your x-functions to find your domain and next to these domains are your y-values those y-values that correlate to your domain are the ranges which are {9,0,-6}