Variable Identification Worksheet
Identify and classify variables in algebraic expressions and real-world scenarios.
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Standards
Variable Identification Worksheet
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Read each question carefully and follow the instructions to identify and classify variables.
1. In the expression 3x + 5y - 7, which of the following are variables?
3, 5, 7
x, y
3x, 5y
All of the above
2. Which of the following best describes a dependent variable?
A variable that changes independently.
A variable whose value depends on another variable.
A constant value.
A known quantity.
3. In the equation y = mx + b, 'y' is the variable and 'x' is the variable.
4. A variable typically represents an quantity.
5. Consider the scenario: 'The cost of a taxi ride is $2.50 plus $1.50 per mile.' Identify the independent and dependent variables, and explain your reasoning.
6. A variable can only be represented by the letters 'x' or 'y'.
True
False
7. In an experiment, the variable that is changed or controlled is the dependent variable.
True
False
Match each term with its definition.
8. Independent Variable
a. A symbol representing a fixed value.
9. Dependent Variable
b. A variable whose value is determined by another.
10. Constant
c. A variable that is manipulated or changed.