Mathplanet

A free service from Mattecentrum

Other tools
  • Mathplanet
  • Matteboken
  • Matteboken (Arabic)
  • Webmatematik (Danish)
Menu
Pre-Algebra / Graphing and functions / Solve systems of equations by graphing /
Search
  • Math Playground
    All courses
      • Math Playground Overview
  • Programming
    All courses
      • Programming Overview
  • Pre-Algebra
    All courses
      • Pre-Algebra Overview
      • Introducing Algebra
        • Pre-Algebra
        • Introducing Algebra
          • Overview
          • Operations in the correct order
          • Evaluate expressions
          • Identify properties
          • Equations with variables
          • Coordinate system and ordered pairs
          • Inequalities
      • Explore and understand integers
        • Pre-Algebra
        • Explore and understand integers
          • Overview
          • Absolute value
          • Adding and subtracting integers
          • Multiplying and dividing with integers
      • Inequalities and one-step equations
        • Pre-Algebra
        • Inequalities and one-step equations
          • Overview
          • Different ways to solve equations
          • Calculating the area and the perimeter
          • Solving inequalities
          • Understanding inequalities and equations
      • Discover fractions and factors
        • Pre-Algebra
        • Discover fractions and factors
          • Overview
          • Monomials and adding or subtracting polynomials
          • Powers and exponents
          • Multiplying polynomials and binomials
          • Factorization and prime numbers
          • Finding the greatest common factor
          • Finding the least common multiple
      • More about the four rules of arithmetic
        • Pre-Algebra
        • More about the four rules of arithmetic
          • Overview
          • Integers and rational numbers
          • Learn how to estimate calculations
          • Calculating with decimals and fractions
          • Geometric sequences of numbers
          • Scientific notation
      • More about equation and inequalities
        • Pre-Algebra
        • More about equation and inequalities
          • Overview
          • Fundamentals in solving Equations in one or more steps
          • Calculating the circumference of a circle
      • Graphing and functions
        • Pre-Algebra
        • Graphing and functions
          • Overview
          • Linear equations in the coordinate plane
          • The slope of a linear function
          • Graphing linear inequalities
          • Solve systems of equations by graphing
        • About Mathplanet
        • Cookie settings
        • Mattecentrum
        • Matteboken
        • Formelsamlingen
        • Pluggakuten
        • Ekonomikoll
      • Ratios and percent
        • Pre-Algebra
        • Ratios and percent
          • Overview
          • Rates and ratios
          • Proportions and percent
          • Solving problems with percentages
      • Probability and statistics
        • Pre-Algebra
        • Probability and statistics
          • Overview
          • The mean, the median and the mode
          • Stem-and-Leaf Plots and Box-and-Whiskers Plot
          • Calculating the outcome
          • Combinations and permutations
          • Finding the odds
          • Probability of events
      • Introducing geometry
        • Pre-Algebra
        • Introducing geometry
          • Overview
          • Geometry – fundamental statements
          • Circle graphs
          • Angles and parallel lines
          • Triangles
          • Quadrilaterals, polygons and transformations
      • Area and Volume
        • Pre-Algebra
        • Area and Volume
          • Overview
          • Measure areas
          • Pyramids, prisms, cylinders and cones
      • Right triangles and algebra
        • Pre-Algebra
        • Right triangles and algebra
          • Overview
          • Square roots and real numbers
          • The Pythagorean Theorem
          • Trigonometry
  • Algebra 1
    All courses
      • Algebra 1 Overview
  • 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.