Unit 2 Check in #1 Review

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, often a letter, that represents an unknown value in an algebraic expression.

Front

Identify the constant in the expression 2a + 6.

Back

The constant in the expression 2a + 6 is 6.

Front

What are like terms in algebra?

Back

Like terms are terms that have the same variable raised to the same power.

Front

Identify the like terms in the expression x, 2x, 3y, 4.

Back

The like terms in the expression are x and 2x.

Front

How do you add algebraic expressions?

Back

To add algebraic expressions, combine like terms by adding their coefficients.

Front

What is the result of adding (x + 4) and (3x + 9)?

Back

The result of adding (x + 4) and (3x + 9) is 4x + 13.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change, represented by a number.

Front

Identify the constant in the expression 3x - 4.

Back

The constant in the expression 3x - 4 is -4.

Front

What is the coefficient in an algebraic term?

Back

The coefficient is the numerical factor that multiplies the variable in an algebraic term.

Front

In the expression 5x, what is the coefficient?

Back

The coefficient in the expression 5x is 5.