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Unit 4 Relations and Functions

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

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

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