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

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