Parabola

Parabola

1. The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves

2. The vertex of a parabola is the point where the parabola crosses its axis of symmetry

3. The standard form is (x - h)2 = 4p (y - k), where the focus is (h, k + p) and the directrix is y = k - p

4. a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped