Algebra 1 Unit 1 Vocabulary Flashcards

Algebra 1 Vocabulary Overview

• Algebraic Expression: A mathematical phrase that includes at least one variable alongside numbers and operations; also known as a variable expression.

• Coefficient: The numerical factor in a term that contains a variable.

• Constant: A term that does not include a variable; it remains unchanged.

• Evaluate: The process of substituting specific values for each variable in an expression and simplifying the result.

• Order of Operations: A specific sequence of steps to follow when simplifying expressions, typically remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

• Substitute: The act of replacing a variable in an expression with a specific number to solve or simplify the problem.

• Variable: A symbol, often a letter, that stands for one or more numbers in mathematical expressions.

• Equation: A mathematical statement that equates two expressions using an equal sign.

• Open Sentence: An equation that contains one or more variables, rather than fixed numbers.

• Exponent: Indicates how many times a number (the base) is multiplied by itself, representing repeated multiplication.

• Simplify: To transform an algebraic expression into its most basic form, making it easier to work with.

• Absolute Value: The non-negative distance of a number from zero on the number line, disregarding direction.

• Integers: The set of whole numbers that includes zero and its negative counterparts, represented as ...-3, -2, -1, 0, 1, 2, 3...

• Irrational Numbers: Numbers that cannot be expressed as a fraction of two integers; their decimal forms are non-terminating and non-repeating.

• Natural Numbers: The positive counting numbers starting from 1, represented as 1, 2, 3, ...

• Rational Numbers: Any real number that can be represented as the quotient of two integers; their decimal forms are either terminating or repeating.

• Real Numbers: All numbers, encompassing both rational and irrational numbers.

• Whole Numbers: Non-negative integers, including zero (0, 1, 2, 3, ...).

Test your knowledge of essential vocabulary in Algebra 1 Unit 1. This quiz covers terms like algebraic expression, coefficient, and constant, helping you understand the foundational elements of algebra. Perfect for students preparing for exams or wanting to solidify their understanding of algebra concepts.