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Front

What is a variable in mathematics?

Back

A symbol, often a letter, that represents a number in an expression or equation.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting numbers for variables.

Front

What is an algebraic expression?

Back

A mathematical phrase that can include numbers, variables, and operation symbols.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not have an equality sign.

Front

What does 'solving for x' mean?

Back

Finding the value of the variable x that makes an equation true.

Front

What is a coefficient?

Back

A number that is multiplied by a variable in an algebraic expression.

Front

What is a constant in mathematics?

Back

A fixed value that does not change.

Front

What does it mean to simplify an expression?

Back

To reduce an expression to its simplest form by combining like terms.

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What is a function?

Back

A relationship where each input has exactly one output.