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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). The focus does not lie on the ...
These properties concern the domain, the codomain and the image of functions.. Injective function: has a distinct value for each distinct input.Also called an injection or, sometimes, one-to-one function.
The four tangents at the three cusps of the parabola intersect in four points, which form a rectangle being called the tangent rectangle. The circumcircle of the tangent rectangle intersects the base side of the outer parabola segment in its midpoint, which is the focus of the outer parabola. One diagonal of the tangent rectangle lies on a ...
A parabolic segment is the region bounded by a parabola and line. To find the area of a parabolic segment, Archimedes considers a certain inscribed triangle. The base of this triangle is the given chord of the parabola, and the third vertex is the point on the parabola such that the tangent to the parabola at that point is parallel to the chord.
The universal parabolic constant is the red length divided by the green length. The universal parabolic constant is a mathematical constant.. It is defined as the ratio, for any parabola, of the arc length of the parabolic segment formed by the latus rectum to the focal parameter.
Regardless of the format, the graph of a univariate quadratic function () = + + is a parabola (as shown at the right). Equivalently, this is the graph of the bivariate quadratic equation = + +. If a > 0, the parabola opens upwards. If a < 0, the parabola opens downwards.
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related to: parabola worksheets with answersIt’s an amazing resource for teachers & homeschoolers - Teaching Mama