Unit 4 Study Guide 2024

Front

What is the value of the expression 2x + 3 + x² when x = 4?

Back

27

Front

Calculate the value of 8y + 12 - 2z for y = 4 and z = 2.

Back

40

Front

What is the equivalent expression for 8(5f - 7) + 3f?

Back

43f - 56

Front

Simplify the expression 2(4 + 9w).

Back

8 + 18w

Front

Identify the variable in the expression 3x + 9.

Back

x

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value.

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms.

Front

What is the order of operations in mathematics?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - PEMDAS.

Front

What is a coefficient in an algebraic expression?

Back

A numerical factor in a term of an expression.

Front

What is the difference between an expression and an equation?

Back

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