1. Left-Handed Locomotive
Unit 4 - Functions

2. Question # 1 What defines a relation as a function?
The terms stay the same.
Each input has only one output.
The difference between consecutive terms is constant.

3. Question #2
What is the definition of a relation?

4. Question #3 (-2,2), (-1,2),(0,2), (1,2), (2,2)
A line has the following ordered pairs:
(-2,2), (-1,2),(0,2), (1,2), (2,2)
Which statement BEST describes the line?
It is a function but not a relation.
It is both a relation and a function.
It is a relation but not a function.

5. What is the name of the test that determines if a graph is a function?
Question #4
What is the name of the test that determines if a graph is a function?

6. Question #5
Which of the following does NOT represent a relation? A. B. C.

7. Question #6
Find a possible value of x so that the table of ordered pairs represents a function. x y 4 1 7 8 5 11

8. Name the domain of the function. {(2,4), (1,-3), (5,6), (-7,2)}
Question #7
Name the domain of the function. {(2,4), (1,-3), (5,6), (-7,2)}

9. Question #8
The following set of points defines a function: {(3, 6), (-4, 1), (5, -5), (9, -6),}. If the answer to a question is 3, -4, 5, 9, what is the question? A)What is the domain of the function? B) What is the range of the function? C) What is the constant difference in the function?

10. Which is a graph of a linear relation?
Question #9
Which is a graph of a linear relation?
A B.
C D.

11. Question #10
Which of the following graphs is a function? A. B. C. D. none of these

12. Question #11 A function is linear if…
A) It makes a curved upward graph
B) It has a common difference
C) There are only positive numbers
D) It never is linear

13. Question #12 The relation is A function Not a function Linear
Not able to be interpreted

14. Question #13
Determine which of the following is a function.

15. Question #14
Does this graph pass the vertical line test? Explain.

16. Question #15
Complete the function table.