Example translating points

Khan Academy4 minutes read

The video explains how to perform point translations on a coordinate plane, demonstrating the algebraic method of reducing the x-coordinate by a certain value and increasing the y-coordinate by another value. This method is applied to a point with coordinates (3, -4), resulting in new coordinates of (-2, -1) after the translation.

Insights

  • The video demonstrates the algebraic method of describing point translations on a coordinate plane, showcasing a systematic approach where x-coordinates are decreased and y-coordinates are increased by specified units.
  • Through the example of translating a point with coordinates (3, -4) by five units to the left and three units up, the algebraic formula (-5, +3) effectively transforms the original point to (-2, -1), illustrating a clear connection between the algebraic rules and the resulting coordinates.

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Recent questions

  • How can point translations be described?

    Point translations can be described algebraically.

  • What is the process of translating a point?

    Translating a point involves adjusting its coordinates.

  • How are new coordinates calculated after translation?

    New coordinates are calculated using algebraic formulas.

  • What is the significance of point translations?

    Point translations help in moving points accurately.

  • How does algebra connect and transform coordinates?

    Algebraic formulas connect and transform coordinates.

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Summary

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"Algebraic Point Translations on Coordinate Plane"

  • The video discusses different ways to describe and execute point translations on a coordinate plane, using an example of translating a point by five units to the left and three units up.
  • One method involves describing the translation algebraically, where the x-coordinate is reduced by five units and the y-coordinate is increased by three units.
  • By applying this algebraic method to a point with coordinates (3, -4), the new coordinates after the translation are calculated as (-2, -1), showcasing how the algebraic formula connects and transforms the original coordinates.
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