code: def _poly(xs: list, x: float):
      """
      Evaluates polynomial with coefficients xs at point x.
      return xs[0] + xs[1] * x + xs[1] * x^2 + .... xs[n] * x^n
      """
      return sum([coeff * math.pow(x, i) for i, coeff in enumerate(xs)])
  
label_desc: Use image node_id 1 for calling a global function with example usage: _poly(xs, x) and returns: sum