Mathplanet

A free service from Mattecentrum

Other tools
  • Mathplanet
  • Matteboken
  • Matteboken (Arabic)
  • Webmatematik (Danish)
Menu
Algebra 1 /

Quadratic equations

  • Use graphing to solve quadratic equations

  • Completing the square

  • The quadratic formula

Next Chapter:

QUADRATIC EQUATIONS – Use graphing to solve quadratic equations
Search
  • Math Playground
    All courses
      • Math Playground Overview
  • Programming
    All courses
      • Programming Overview
  • Pre-Algebra
    All courses
      • Pre-Algebra Overview
  • Algebra 1
    All courses
      • Algebra 1 Overview
      • Discovering expressions, equations and functions
        • Algebra 1
        • Discovering expressions, equations and functions
          • Overview
          • Expressions and variables
          • Operations in the right order
          • Composing expressions
          • Composing equations and inequalities
          • Representing functions as rules and graphs
      • Exploring real numbers
        • Algebra 1
        • Exploring real numbers
          • Overview
          • Integers and rational numbers
          • Calculating with real numbers
          • The Distributive property
          • Square roots
      • How to solve linear equations
        • Algebra 1
        • How to solve linear equations
          • Overview
          • Properties of equalities
          • Fundamentals in solving equations in one or more steps
          • Ratios and proportions and how to solve them
          • Similar figures
          • Calculating with percentages
      • Visualizing linear functions
        • Algebra 1
        • Visualizing linear functions
          • Overview
          • The coordinate plane
          • Linear equations in the coordinate plane
          • The slope of a linear function
          • The slope-intercept form of a linear equation
      • Formulating linear equations
        • Algebra 1
        • Formulating linear equations
          • Overview
          • Writing linear equations using the slope-intercept form
          • Writing linear equations using the point-slope form and the standard form
          • Parallel and perpendicular lines
          • Scatter plots and linear models
      • Linear inequalities
        • Algebra 1
        • Linear inequalities
          • Overview
          • Solving linear inequalities
          • Solving compound inequalities
          • Solving absolute value equations and inequalities
          • Linear inequalities in two variables
      • Systems of linear equations and inequalities
        • Algebra 1
        • Systems of linear equations and inequalities
          • Overview
          • Graphing linear systems
          • The substitution method for solving linear systems
          • The elimination method for solving linear systems
          • Systems of linear inequalities
      • Exponents and exponential functions
        • Algebra 1
        • Exponents and exponential functions
          • Overview
          • Properties of exponents
          • Scientific notation
          • Exponential growth functions
      • Factoring and polynomials
        • Algebra 1
        • Factoring and polynomials
          • Overview
          • Monomials and polynomials
          • Special products of polynomials
          • Polynomial equations in factored form
      • Quadratic equations
        • Algebra 1
        • Quadratic equations
          • Overview
          • Use graphing to solve quadratic equations
          • Completing the square
          • The quadratic formula
        • About Mathplanet
        • Cookie settings
        • Mattecentrum
        • Matteboken
        • Formelsamlingen
        • Pluggakuten
        • Ekonomikoll
      • Radical expressions
        • Algebra 1
        • Radical expressions
          • Overview
          • The graph of a radical function
          • Simplify radical expressions
          • Radical equations
          • The Pythagorean Theorem
          • The distance and midpoint formulas
      • Rational expressions
        • Algebra 1
        • Rational expressions
          • Overview
          • Simplify rational expression
          • Multiply rational expressions
          • Division of polynomials
          • Add and subtract rational expressions
          • Solving rational equations
  • Algebra 2
    All courses
      • Algebra 2 Overview
  • Geometry
    All courses
      • Geometry Overview
  • SAT
    All courses
      • SAT Overview
  • ACT
    All courses
      • ACT Overview

Creative Commons-licens
Mathplanet is licensed by Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationell-licens.