def predict(X, line):
    """ I use my model (the equation of the line) to predict new values """
    prediction = []
    coefs = line.coefficients
    a = coefs[0]
    b = coefs[1]
    c = coefs[2]
    for x in X.values:
        y = - (a/b)*x - (c/b)
        prediction.append(y)
    return prediction