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Unit 4 Relations and Functions

Author: Walters Natalie
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. Is (3, 2) (1, -4) (-3, 0) a function?
1. What is f(-1) for the function f(x) = -3x %2b 2
2. For a relation to be a function the ___ values can%27t repeat
3. What is another word for x values or input?
4. What is f(-3) for the function f(x) = 2 - 4x
5. What is the range of the function (0, 1) (1, 4) (5, 6)
6. If a relation passes the ____ line test then its a function
7. What is f(0) for the function f(x) = 3 %2b 2x
8. What is f(3) for the function f(x) = 2x %2b1
9. What are three ways you can evaluate functions?
10. What is the domain of the function (1, -1), (3, 4), ( 0, 9)
11. What is another word for y values or output?
12. What is the domain of the function (0, 1) (1, 4) (5, 6)
13. When a graph is not a function we call it a _______
14. Is (3, 2) (3, -1) (2, 4) a function?
15. What is the range of the function (1, -1), (3, 4), ( 0, 9)

Answers:
0. 1, 4, 6
1. 1. Graphing 2. By hand 3. Using a table
2. 14
3. Yes, it is a function
4. 7
5. x
6. 3
7. No, it is not a function
8. 0, 1, 5
9. 5
10. vertical
11. -1, 4, 9
12. Domain
13. Range
14. relation
15. 1, 3, 0