How To Count & say the numbers in Cherokee. Check out this instructional language video to learn how to speak Cherokee! In this lesson, learn how to count the numbers one through twenty. This tutorial is great for beginners who want to improve their Cherokee language skills. Practice your Cherokee by learning the numbers and how to count! Check out this instructional language video to learn how to speak Cherokee! In this lesson, learn how to count the numbers one through twenty.
Directrix of a Parabola. A line perpendicular to the axis of symmetry used in the definition of a parabola. A parabola is defined as follows: For a given point, called the focus, and a given line not through the focus, called the directrix, a parabola is the locus of points such that the distance to the focus equals the distance to the directrix.
(pÉ-rÄb'É-lÉ) The curve formed by the set of points in a plane that are all equally distant from both a given line (called the directrix) and a given point (called the focus) that is not on the line. parabola in Culture Expand.