Question

a parabola is defined by a point called its and a line called its. the distance from any point on the parabola to the is always equal to the distance from that point to the. the is the point where the parabolas curve makes its sharpest turn. the is halfway between the and the directrix.

Explanation:

A parabola is defined by a focus (a point) and a directrix (a line). The key property of a parabola is that the distance from any point on it to the focus equals the distance to the directrix. The vertex is the sharp - turn point of the parabola and it lies halfway between the focus and the directrix.

Answer:

• A parabola is defined by a point called its focus and a line called its directrix.
• The distance from any point on the parabola to the focus is always equal to the distance from that point to the directrix.
• The vertex is the point where the parabola's curve makes its sharpest turn.
• The vertex is halfway between the focus and the directrix.