Vocabulary
Evaluating Function Rules
Independent & Dependent
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
What subject did Ms. Ramsey teach at NMS before she was a principal?
Science
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
Evaluate f(7) if f(x)= -(4x+2)
f(7) = -30
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
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.
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
Identify the dependent (y) variable: The relationship between your allowance and the number of chores you do.
Your allowance.
300
State the domain and range:
D: -4 ≤ x
R: y∈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
Fill in the blank.
Exponential functions can only increase or decrease across the domain which is also known as ________ or ________ .
growth and decay
400
Evaluate f(x)=9 if f(x)=25 - 4x
x = 4
400
Identify the independent (x) and dependent variables (y): You are buying boxes of cookies at a bakery. Each box of cookies costs $4.
Independent Variable: The number boxes of cookies purchased. Dependent Variable: How much you spend at the bakery.
400
In 2022, Jose buys a new car for $50,000. Each year, the cost depreciates (decreases) in value. He plans to sell his car before the end of 2025.
Identify the independent and dependent quantities (including units) then state the domain and range:
Independent: time (years)
Dependent: Value of Car (dollars)
D: x > 3
R: y < 50,000
400
Name 2 schools in Brockton that Ms. Doyle attended growing up
...
500
A catering service charges $50 for a delivery plus $4.50 per sandwich.
Is this situation discrete or continuous?
What type of function does this represent?
Discrete & Linear
500
Evaluate f(x)=42 if f(x)=3x+15
x = 9
500
Identify the independent (x) and dependent (y) variables: On your math quiz, you earn 5 points for each question that you answer correctly.
Independent Variable: Number of questions answered correctly. Dependent Variable: Score on the quiz.
500
** SINGLE TEAM ONLY CHALLENGE **
Sing the chorus to twinkle twinkle little star
...
500
Is it a function? Justify your answer.
Yes, each input has exactly one output.