{
  "schemaVersion": 1,
  "id": "math-parabola-line",
  "code": "def f(x):\n    return x**2 - 4*x + 3\n\ndef k(x):\n    return 2*x + 1\n\nrysuj(f, k)\n",
  "preparedInput": null,
  "lesson": null
}