Friday, February 13, 2015

Solving equations HW on K. A.

Log in to Khan Academy first! 

then click on each of the links and get 10 correct answers for each link (Substitution, Elimination, and Graphing). Should be a total of 30 correct problems. 

  1. Systems of Equations

    1. Practice solving by substitution on Khan Academy.

      1. https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-systems-topic/cc-8th-systems-with-substitution/e/systems_of_equations_with_substitution

    2. Practice Solve by elimination or substitution…

      1. https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/fast-systems-of-equations/e/systems_of_equations

    3. Practice solve by graphing in Khan Academy. - System of Linear Equations.

      1. In the following link they'll give you two equations.

      2. Use your own paper to find the points where the line should go (using the y-intercept and slope, or using the x-intercept and y-intercept).

      3. Once you know where the points should be, use the mouse and drag each line to where it's supposed to be and check your answers. Great way to practice.

      4. https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/fast-systems-of-equations/e/graphing_systems_of_equations

    4. special cases of systems of equations.

      1. Infinite solutions and No Solutions.

      2. https://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/fast-systems-of-equations/e/solutions_to_systems_of_equations


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