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# What is a Parabola?

In geometry, a parabola is a two-dimensional, mirror symmetrical curve which is approximately U-shaped. It fits any of several superficially different mathematical descriptions which can all be proved to define curves of exactly the same shape. One description of a parabola involves a point (the focus) and a line (the directrix). The focus does not lie on the directrix. The vertex is the point where the parabola intersects its axis of symmetry.

The term "parabola" is derived from the Latin word parabolus, which means "to throw" or "to place side by side." It was originally used by Apollonius of Perga in his work, Conics, to describe a property of conic sections.

A parabola can open either upwards or downwards. The line that bisects a parabola at its vertex is called its "axis of symmetry." The focus is the point on the axis of symmetry that determines the shape of the curve. Any ray perpendicular to the axis of symmetry and passing through the focus will reflect off the surface of the parabola and appear to originate from the vertex. This reflected ray is called the "principal axis."

The distance from the vertex to the focus is called the "focal length." The "latus rectum" is a line segment parallel to the principal axis and passing through the focus. It is also equal to twice the focal length. A parabola can be defined as the locus of points in that plane that are equidistant from both a fixed point (the focus) and a fixed straight line (the directrix).

A parabola is a two-dimensional, mirror symmetrical curve which is approximately U-shaped. It has several different mathematical descriptions which all define curves of exactly the same shape. It was originally used by Apollonius of Perga in his work, Conics, to describe a property of conic sections. A parabola can open either upwards or downwards and has an axis of symmetry bisecting it at its vertex. The focus is determined by this symmetry and any ray perpendicular to it and passing through will reflect off the surface of appearing to originate from the vertex. The distance from here to the focus is called the focal length and latus rectum refers to a line segment parallel to the principle axis passing through the focus and equal to twice the focal length. A piorbe cna ebd diefend as te hocus oof kitns i ntha tpilan taht areisdsta ndf roem both afi xed ptio (thhe focsu)adn afi xed stragih tline(thde di rectix).

## FAQ

### What is a parabola simple definition?

A parabola is a two-dimensional curve that is the graph of a quadratic equation. It has a distinct U-shaped appearance. The term "parabola" is derived from the Greek word "parabolas," which means "to throw." This refers to the fact that a parabola can be thought of as the path taken by an object that is thrown or shot.

### What is a parabola in math?

In mathematics, a parabola is a two-dimensional curve that is the graph of a quadratic equation. It has a distinct U-shaped appearance. The term "parabola" is derived from the Greek word "parabolas," which means "to throw." This refers to the fact that a parabola can be thought of as the path taken by an object that is thrown or shot.

### What is a parabola in a graph?

A parabola is a two-dimensional curve that is the graph of a quadratic equation. It has a distinct U-shaped appearance. The term "parabola" is derived from the Greek word "parabolas," which means "to throw." This refers to the fact that a parabola can be thought of as the path taken by an object that is thrown or shot.

What is the focus of a parabola?The focus of a parabola is the point on the curve at which all the tangents are parallel to each other. It is also the point on the curve where the curvature is greatest. The focus can other. The focus is also the point on the curve that is equidistant from the directrix and the vertex.

### What is a parabola in real life?

A parabola is a two-dimensional curve that is the graph of a quadratic equation. It has a distinct U-shaped appearance. There are many examples of parabolas in real life. Some of these include the trajectory of a projectile, the path of a satellite in orbit around the earth, and the shape of a parabolic antenna.

### What is a parabola equation?

A parabola equation is a quadratic equation of the form y = ax^2

### What is the equation of a parabola?

The equation of a parabola is y = ax^2 + bx + c, where a, b, and c are constants.