Vocabulary
Evaluating Function Rules
Random
Domain & Range
Is it a Function?
100
What is the definition of domain?
A set of input values (all values of x).
100
Evaluate f(2) if f(x)=-3x
f(2) = -6
100
When is your math exam?
(not MAP test)
December 12th
100
State the domain and range:
| x | y |
| 3 | 7 |
| 5 | 9 |
| 3 | 8 |
D: {3, 5} R: {7, 8, 9}
100
Is it a function? Justify your answer. {(2, 3), (4, 5), ( -2, 6)}
Yes, each input has exactly one output.
200
What is the definition of range?
The set of output values (all values of y).
200
Surprise!!
Make a team motto using at least ONE math word
Example: We stay positive—no negatives allowed
200
Identify the independent (x) variable: The relationship between the number of hours worked and the amount of money earned.
The number of hours worked.
200
Determine the Domain and Range 
D: (-3,8]
R: (-5,2]
200
Using the vertical line test, does the graph represent a function?
No
300
What is the definition of a function?
Each input has exactly one output value.
300
Evaluate f(-6) if f(x)=x^2 - 4
f(-6) = 32
300
Determine the input if f(x)=36 and f(x)=2x+6
x=15
300
State the domain and range: 
D: [-4,∞ )
R: (-∞ ,+∞ )
300
Is it a function? Justify your answer.
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
No, the input of 2 has two different outputs.
400
Which variable is the input, and which one is the output?
(Which one is the x-variable, which one is the y-variable?)
x-variable is the input, y-variable is the output
400
Evaluate f(x)=8 if f(x)=35 - 3x
x = 9
400
Describe what is happening from (-2,2) to (2,4)
Increasing
400
Surprise!!
What’s a small thing that instantly makes your day better?
400
Is it a function? Justify your answer.
Yes, it passes the Vertical Line Test.
500
What is the test to tell if a graph is a function?
Vertical Line Test
500
Evaluate f(x)=42 if f(x)=3x+15
x = 9
500
Determine the intervals where the function represented by the graph is increasing, decreasing, or constant.
Dec >> Con >> Inc >> Inc >> Dec
500
State the domain and range:
D: (-∞ , ∞)
R: (-∞ , 4]
500
Is it a function? Justify your answer.
No