Summary of LA PARÁBOLA Concéptos básicos

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00:00:00 - 00:15:00

This video explains the basic concepts of a parabola. The focus and directrix are equidistant from the vertex, which is the lowest point of the parabola. The distance "p" between the vertex and the focus/directrix determines the size of the parabola. The instructor demonstrates how to graph a parabola by determining whether it opens up or down, locating the vertex, and finding the value of "p". They also explain how to draw the axis of symmetry, focus, and directrix. The video then explains how to graph a parabola that opens to the left, with the vertex to the right of the focus and directrix. The viewer is encouraged to practice by solving two provided exercises.

  • 00:00:00 focus es el punto desde el que se mide la distancia a cualquier punto de la parábola y la directriz es la recta fija del mismo plano que tiene la misma distancia de todos los puntos de la parábola. La parábola se puede dibujar en cualquier dirección y puede abrirse hacia arriba, abajo, izquierda, derecha o en un ángulo determinado, y todos los puntos de la parábola tienen que estar a la misma distancia del foco y de la directriz. También es importante saber que el punto clave de la parábola es el vértice, que es el punto que se encuentra en el centro entre el foco y la directriz.
  • 00:05:00 In this section, the instructor explains the basic concepts of a parabola. The vertex is the point at the lowest part of the parabola, while the focus and directrix are equidistant from the vertex. The distance between the vertex and the focus or the directrix is known as "p", which determines the size of the parabola. The instructor then demonstrates how to graph a parabola, stating that it is necessary to know whether it opens up or down, the location of the vertex, and the value of "p". By using a graphing auxiliary, the instructor explains how to locate the focus and directrix and how to draw the axis of symmetry.
  • 00:10:00 derecha y conocemos el foco y la p, pero no el vértice. Se dibuja un dibujo auxiliar para ubicar la posición del vértice, dibujando una parábola que abre hacia la derecha y colocando el vértice a la derecha del foco y la directriz a la izquierda del foco. El lado recto es paralelo a la directriz. La p es 2, por lo que el lado recto debe medir 8 unidades. El gráfico se traza mediante el vértice, el foco y la directriz, y la parábola pasa por los dos puntos ubicados en el lado recto. Dos ejercicios son proporcionados para que el espectador pueda practicar la creación de gráficos de parábolas.
  • 00:15:00 In this section, the speaker explains how to graph a parabola when it opens to the left. The focus is located inside the parabola and the vertex is located to the right of the focus. The directrix is located to the right of the vertex. By measuring the distance p, the side of the parabola is determined to be four units. With this information, the parabola can be accurately drawn passing through the vertex and the two points that represent the corners of the side. The speaker reminds the viewers to check out the full course on the parabola on his channel or through the link provided in the video description.

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