algebra

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I AM TRYING TO SOLVE A SYSTEM OF EQUATIONS BY GRAPHING AND CAN GET THIS ONE.

3x + y = 2
4y = 12 - 12x

HOW DO YOU DO THIS?

  • algebra -

    Graph each Eq; the point where they intersect is the solution. Then verify
    your solution by solving them mathematically.

    Eq1: 3x + y = 2.
    (-2,8), (0,2), (2,-4).

    Eq2: 12x + 4y = 12.
    Divide both sides by 4:
    3x + y = 3.
    (-2,9), (0,3), (2,-3).

    Use the points given or any convenient points.

    NOTE: The 2 Eqs have equal slopes. Therefore, they do not intersect and
    there are no solution. Be sure to do
    the graphs anyway.

    m1 = -A/B = -3/1 = -3.
    m2 = -A/B = -3/1 = -3.

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