Algebra Fundamentals

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Questions and Answers

What is the primary focus of algebra?

  • Deals with variables and their relationships (correct)
  • Investigates the properties of whole numbers
  • Explores the applications of trigonometry
  • Studies of geometric shapes and sizes

What is the purpose of the addition and subtraction properties in solving equations?

  • To isolate a variable by multiplying both sides
  • To simplify expressions using exponent rules
  • To graph linear equations on a coordinate plane
  • To add or subtract the same value to both sides to isolate a variable (correct)

What type of algebra deals with systems of equations and functions?

  • Intermediate Algebra (correct)
  • College Algebra
  • Advanced Algebra
  • Elementary Algebra

What is the name of the form used to graph linear equations?

<p>Slope-intercept form (A)</p> Signup and view all the answers

What is the purpose of using inverse operations in solving equations?

<p>To use opposite operations to isolate a variable (C)</p> Signup and view all the answers

What is the term for a combination of variables, constants, and mathematical operations?

<p>Expression (D)</p> Signup and view all the answers

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Study Notes

Algebra

What is Algebra?

  • Branch of mathematics that deals with variables and their relationships
  • Studies the properties and behavior of variables and their operations

Key Concepts:

  • Variables: Symbols that represent unknown values or quantities
  • Constants: Numbers that do not change value
  • Expressions: Combinations of variables, constants, and mathematical operations
  • Equations: Statements that express the equality of two expressions
  • Inequalities: Statements that compare two expressions using greater than, less than, or equal to

Types of Algebra:

  • Elementary Algebra: Deals with solving linear equations and inequalities, graphing lines, and quadratic equations
  • Intermediate Algebra: Covers systems of equations, functions, and quadratic equations
  • College Algebra: Includes advanced topics such as polynomial and rational expressions, and functions

Algebraic Operations:

  • Addition and Subtraction: Combine like terms by combining coefficients
  • Multiplication and Division: Distribute numbers and variables according to the order of operations (PEMDAS)
  • Exponents and Roots: Simplify expressions using exponent rules and properties of roots

Solving Equations and Inequalities:

  • Addition and Subtraction Properties: Add or subtract the same value to both sides to isolate a variable
  • Multiplication and Division Properties: Multiply or divide both sides by a coefficient to isolate a variable
  • Inverse Operations: Use opposite operations to isolate a variable (e.g., addition and subtraction, multiplication and division)

Graphing and Functions:

  • Coordinate Plane: Graph points in a two-dimensional plane using x and y axes
  • Linear Equations: Graph lines using slope-intercept form (y = mx + b)
  • Quadratic Equations: Graph parabolas using vertex form (y = a(x - h)^2 + k)

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