Parabola - Wikipedia
网页In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical descriptions, which can all be proved to define exactly the same curves. One description of a parabola involves a point (the focus) and a line (the directrix).
Parabola - Formula, Graphing, Examples | Parabola Equation
网页A parabola is the locus of a point that is equidistant from a fixed point called the focus (F), and the fixed-line is called the Directrix (x + a = 0). Let us consider a point P(x, y) on the parabola, and using the formula PF = PM, we can find the equation of the parabola.
Parabola - Math is Fun
网页A parabola is a curve where any point is at an equal distance from: a fixed point (the focus), and; a fixed straight line (the directrix)
Parabola - General Equations, Properties and Practice Problems …
网页Parabola is a U-shaped plane curve where any point is at an equal distance from a fixed point and from a fixed straight line. Click to learn more about parabola and its concepts. Also, download the parabola PDF lesson for free.
Parabola - Math.net
网页Parabola. A parabola is the characteristic U-shaped curve of a quadratic equation. A parabola can be used to model many real-world phenomena. For example, when you shoot a basketball, the path of the ball creates a parabola. Below are two parabola graph examples, one in which the parabola opens upwards and one in which it opens downwards:
Khan Academy
网页Watch this video to learn what parabolas are, how to graph them, and how they relate to quadratic functions and equations.
What are parabolas, their equations, their rules? | Purplemath
网页A parabola is a particular type of geometrical curve which, algebraically, corresponds to a quadratic equation. In geometrical terms, the parabola corresponds to the edge of slice of an inverted cone; this slice is what is called the conic "section".
Parabola | Definition, Equation, & Facts | Britannica
网页Parabola, open curve, a conic section produced by the intersection of a right circular cone and a plane parallel to an element of the cone. As a plane curve, it may be defined as the path of a point moving so that its distance from a fixed line is …
5.2: The Equation of the Parabola - Mathematics LibreTexts
网页A parabola is defined as the locus (or collection) of points equidistant from a given point (the focus) and a given line (the directrix). Another important point is the vertex or turning point of the parabola.
11.3: Parabolas - Mathematics LibreTexts
网页2022年2月14日 · Parabola: A parabola is all points in a plane that are the same distance from a fixed point and a fixed line. The fixed point is called the focus, and the fixed line is called the directrix of the parabola.