Vocabulary
Evaluating Function Rules
Domain & Range
Is it a Function?
Just for Fun!
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
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.
100
What is the name of South Albany's Mascot?
Rowdy the Redhawk
200
What is the definition of range?
The set of output values (all values of y).
200
Evaluate f(7) if f(x)= -(4x+2)
f(7) = -30
200
State the domain and range:
D: {1, 2, 3, 4, 5, 6}
R: {-1, 0, 1, 2, 3, 6}
200
Using the vertical line test, does the graph of the points (1,3) and (1,5) represent a function?
No, the points fail the Vertical Line Test.
200
When is the Unit 3 Test for this class?
Tomorrow!
300
What is the definition of a function?
A relationship between input and output values. Each input has exactly one output value.
300
Evaluate f(-6) if f(x)=x^2 - 9
f(-6) = 27
300
State the domain and range: 
D: [-4,+inf.)
R: (-inf. , +inf.)
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.
300
What is the name of the snowman in Frozen?
Olaf
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
(x - independent, y - dependent)
400
Evaluate f(-2) if f(x)=25 - 4x
f(-2) = 33
400
State the domain and range: 
D: (-inf. , +inf.)
R: (-inf. , 3]
400
Is it a function? Justify your answer.
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Yes, it passes the Vertical Line Test.
400
In which country does the "Beauty and the Beast" movie take place?
France
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
State the domain and range:
{(-3,5), (0,1), (9,-4), (-7,-2)}
D: {-7,-3,0,9}
R: {-4,-2,1,5}
500
Is it a function? Justify your answer. 
Yes, each input has exactly one output.
500
What is Mrs. Nockles favorite ice cream flavor?
Chocolate & Peanut Butter