algebra

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graph the system and write the solution
-2x+y=6
y=1/2+3

  • algebra -

    Your solution is going to be where these two lines cross each other.

    -2x + y = 6

    can be written as y = 2x+ 6

    choose values for x and see what y becomes.

    x = -1 y = 4
    x = 0 y = __
    x = 1 Y = ___

    Graph these 3 points.

    y = 1/2 x + 3

    To find points easier, use multiples of 2 for x.

    x = 4 so y = 2+3 = 5
    x = -4 so y = -2 + 3 = 1
    x = 0 y = ____
    x = 2 y = _____

    You should use a minimum of three points.
    Once you find the point where the two lines cross, you should check both the x and y value in each equation to be sure that you have not made a mistake.

    for the second equation

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