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6 October, 13:41

What is the equation of this graph? coordinates: (1,7), (0,0), (-1,-7)

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Answers (2)
  1. 6 October, 15:26
    0
    y=7x

    Step-by-step explanation:

    y=ax+b

    put (x, y) = (1,7), (0,0), (-1,-7)

    when (0,0)

    0=b

    y=ax, put (1,7)

    a=7

    *If you want to check again, also put (-1,-7)

    So, y=ax+b equal y = 7x
  2. 6 October, 16:41
    0
    y = 7x

    Step-by-step explanation:

    Slope: (7-0) / (1-0) = 7

    y-intercept is obviously 0

    y = 7x + 0

    y = 7x
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