Variables and Expressions

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters like x, y, or g.

Front

What is an algebraic expression?

Back

A mathematical phrase that can include numbers, variables, and operators, but does not have an equal sign.

Front

What is a coefficient?

Back

A numerical factor in a term of an algebraic expression, such as the 4 in 4n.

Front

What is a constant?

Back

A fixed value that does not change, such as the number 5 in the expression 5 + y.

Front

What is an operator?

Back

A symbol that represents a mathematical operation, such as + (addition), - (subtraction), * (multiplication), or / (division).

Front

Identify the variable in the expression: 5 + y.

Back

y

Front

True or False: An algebraic expression has an equal sign.

Back

False

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equal sign, while an equation does.

Front

What does the term 'term' refer to in algebra?

Back

A single mathematical expression that can be a number, variable, or the product of numbers and variables.

Front

What is the value of the coefficient in the term 7x?

Back

7