Grade 9 Algebra: Variable Identification Worksheet
Identify and classify variables in algebraic expressions and equations at a Grade 9 level.
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Standards
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Grade 9 Algebra: Variable Identification
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Read each question carefully and follow the instructions to identify and classify variables.
1. In the expression 3x + 7, what is 'x' considered?
A constant
A coefficient
A variable
An operator
2. Which of the following represents an independent variable in a functional relationship?
The output value
The value that changes in response to another
The value that is manipulated or chosen
A fixed numerical value
1. In the equation y = 2x + 5, 'y' is the variable.
2. A symbol that represents an unknown or changing value is called a .
3. The number multiplied by a variable in an algebraic term is known as the .
1. In the expression 4a - 9, '9' is a variable.
True
False
2. In the formula A = lw, both 'l' and 'w' are considered variables.
True
False
1. List all the variables present in the equation 5x^2 + 2y - 10 = 0.
2. Explain the difference between a variable and a constant in an algebraic expression.
Use the words below to complete the sentences.
1. The value of a variable changes as a result of the change in another variable.
2. In the equation c = πd, 'd' is the variable, and 'c' is the dependent variable.
3. A fixed numerical value is called a .
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