Algebraic Expressions

True or False: In the expression 2x + 9, 2 is the coefficient.

• True

• False

• 2 is a constant

• 9 is the coefficient

True or False: Fractions, like 5/8, are considered constants.

• True

• False

• Sometimes

• Only in certain contexts

What are the coefficients in the expression -4x + 6y - 2?

• -4, 2

• -4, 6

• 4, 6

• -6, 2

What is an algebraic expression?

• A type of equation that has no solution.

• A mathematical phrase that can include numbers, variables, and operations.

• A graphical representation of a function.

• A numerical value that represents a constant.

What is the difference between an expression and an equation?

• An expression has an equals sign, while an equation does not.

• An expression is a mathematical phrase, while an equation is a statement of equality.

• An expression can only contain numbers, while an equation can contain variables.

• An expression does not have an equals sign, while an equation does.

Which expression contains the coefficients 4 and -6?

• 4n + 6n + 4

• 4n - 6n + 4

• 2n + 4n - 6

• -4n + 6n - 4

What does it mean to simplify an algebraic expression?

• To combine like terms and reduce the expression to its simplest form.

• To multiply all terms by a common factor.

• To rearrange the expression in descending order.

• To add all coefficients together.

Define a variable in algebra.

• A constant value that does not change.

• A symbol used to represent an unknown number, often denoted by letters like x, y, or n.

• An equation that shows the relationship between two quantities.

• A type of function that maps inputs to outputs.

Which of the following is NOT an example of a variable: 8, x, u, n?

• 8

• x

• u

• n

What are the terms in the expression 15n - 4?

• 15n, -4

• 15n, 4

• -15n, -4

• 15n, -5