READ_ONLY_ACCESS
[
  {
    "id": "maths1-w03-000",
    "front": "Vertex $x$-coordinate for $y = ax^2 + bx + c$",
    "back": "$x = -\\frac{b}{2a}$"
  },
  {
    "id": "maths1-w03-001",
    "front": "Discriminant formula for $ax^2 + bx + c = 0$",
    "back": "$D = b^2 - 4ac$"
  },
  {
    "id": "maths1-w03-002",
    "front": "Roots nature when discriminant $D > 0$",
    "back": "Two distinct real roots"
  },
  {
    "id": "maths1-w03-003",
    "front": "Roots nature when discriminant $D = 0$",
    "back": "One real repeated root (tangent to axis)"
  },
  {
    "id": "maths1-w03-004",
    "front": "Roots nature when discriminant $D < 0$",
    "back": "Two complex conjugate roots (no x-intercepts)"
  },
  {
    "id": "maths1-w03-005",
    "front": "Vieta's formula for sum of roots",
    "back": "$\\alpha + \\beta = -\\frac{b}{a}$"
  },
  {
    "id": "maths1-w03-006",
    "front": "Vieta's formula for product of roots",
    "back": "$\\alpha \\beta = \\frac{c}{a}$"
  },
  {
    "id": "maths1-w03-007",
    "front": "Parabola opening direction if $a > 0$",
    "back": "Upward (has a global minimum at vertex)"
  },
  {
    "id": "maths1-w03-008",
    "front": "Parabola opening direction if $a < 0$",
    "back": "Downward (has a global maximum at vertex)"
  }
]