Identify Parts of an Expression

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 4x and 5x are like terms, while 4x and 5y are not.

Front

True or False: 4 and 14 are like terms.

Back

True

Front

What is an expression in mathematics?

Back

An expression is a mathematical phrase that can include numbers, variables, and operators, but does not have an equal sign.

Front

Which of the following is not true of an expression? It can be solved, It can be evaluated, It is a mathematical phrase, It does not have an equal sign.

Back

It can be solved.

Front

Identify the variables in the expression 3x + 9.

Back

x

Front

Are 3x and 5x^2 like terms?

Back

No, because the exponent is not the same.

Front

True or False: y and 14 are like terms.

Back

False.

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable. For example, in 4x, 4 is the coefficient.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with numbers.

Front

What is the difference between an expression and an equation?

Back

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