Flashcard Review 3-4 to 3-7

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change. In the expression 3x + 2y + 7, the constant is 7.

Front

Back

When x = 9, the expression evaluates to 108.

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor in a term. In the expression 40y - 3, the coefficient is 40.

Front

Identify the coefficient in the expression 8 + 5x.

Back

The coefficient in the expression is 5.

Front

What does it mean to combine like terms?

Back

Combining like terms means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.

Front

Combine the like terms: 4y + 6 + 7y - 4.

Back

The equivalent expression is 11y + 2.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Front

What is the value of the expression 2x + 3 when x = 5?

Back

When x = 5, the expression evaluates to 13.

Front

What is the term in the expression 3x + 4y?

Back

The terms in the expression are 3x and 4y.

Front

What is the degree of the polynomial 2x^3 + 3x^2 + 4?

Back

The degree of the polynomial is 3, which is the highest exponent of the variable.