Algebraic Expressions and Variables

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. For example, in the expression -r + 2, the constant is 2.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable. For example, in the expression 7c + 8, the coefficient of c is 7.

Front

Identify the constant in the expression -5x + 3.

Back

The constant is 3.

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol that represents an unknown value. For example, in the expression 3x + 5, x is the variable.

Front

How many terms are in the expression 4y - 2 + 3z?

Back

There are 3 terms: 4y, -2, and 3z.

Front

What is the term in an algebraic expression?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both. For example, in 5x + 3y - 2, the terms are 5x, 3y, and -2.

Front

Identify the variable in the expression 2a + 7.

Back

The variable is a.

Front

What is the coefficient of the expression 9m - 4?

Back

The coefficient is 9.

Front

What is the constant in the expression 6 + 2x?

Back

The constant is 6.

Front

How many terms are in the expression 3x^2 + 4x - 5 + 7?

Back

There are 4 terms: 3x^2, 4x, -5, and 7.