Pre-Algebra

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How do you find an equation if you only a have a graph. Like, its already graphed??

  • Pre-Algebra -

    If it is a graph of a line then check the point on the y axis where it cuts call it c(include the negative sign if cutting negative y axis)
    Locate any to points on the line and find the gradient(m)
    so the equation is y = mx + c

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