## Viewing Precalculus topics

The following topics are immediate sub-topics of Precalculus.

• #### Term: Asymptote

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: A line or curve that the graph of a relation approaches more and more closely the further the graph is followed.
• #### Term: Conic Section

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: The conic sections are the nondegenerate curves generated by the intersections of a plane with one or two nappes of a cone. For a plane perpendicular to the axis of the cone, a circle is produced. ...
• #### Term: Directrix

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: The directrix of a conic section is the line which, together with the point known as the focus, serves to define a conic section as the locus of points whose distance from the focus is proportional...
• #### Term: Domain

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: The set of values of the independent variable(s) for which a function or relation is defined. Typically, this is the set of x-values that give rise to real y-values.
• #### Term: Eccentricity

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: A quantity defined for a conic section which can be given in terms of semimajor a and semiminor axes b.
• #### Term: Ellipse

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• Definition: An ellipse is a curve that is the locus of all points in the plane the sum of whose distances r_1 and r_2 from two fixed points F_1 and F_2 (the foci) separated by a distance of 2c is a given posit...
• #### Term: Focus

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: A point related to the construction and properties of conic sections. Hyperbolas and noncircular ellipses have two distinct foci and two associated conic section directrices, each directrix being p...
• #### Term: Function

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• Listed under: ... >> Mathematics >> Precalculus
• Definition: A function is a procedure for assigning a unique output to any allowable input.
• #### Term: Hyperbola

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