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seashell

  • 3 years ago

Find the coordinates of the other endpoint when you are given the midpoint and one of the endpoints. Answer in terms of a decimal rounded to the nearest tenth or an improper fraction in simplest form. P1 M P2 (3, 5) (-2, 0) ( , ) helpppp

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  1. seashell
    • 3 years ago
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    please teach me step by step

  2. princeofwetlot
    • 3 years ago
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    midpoint of x = \(\Large \frac{x_1 + x_2}{2}\)

  3. princeofwetlot
    • 3 years ago
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    midpoint of y = \(\Large \frac{y_1 + y_2}{2}\)

  4. princeofwetlot
    • 3 years ago
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    okay...midpoint of x means x coordinate of the midpoint...what is the x coordinate of your midpoint?

  5. seashell
    • 3 years ago
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    -2

  6. princeofwetlot
    • 3 years ago
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    now...what is the x coordinate of one of the endpoints?

  7. seashell
    • 3 years ago
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    3

  8. princeofwetlot
    • 3 years ago
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    so... \[\large -2 = \frac{3 + x_2}{2}\] got that? i just substituted

  9. seashell
    • 3 years ago
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    ohhhhhhh

  10. seashell
    • 3 years ago
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    :D yes!

  11. princeofwetlot
    • 3 years ago
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    so i assume you can do the rest?

  12. seashell
    • 3 years ago
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    then i do the same for y?

  13. princeofwetlot
    • 3 years ago
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    yes

  14. seashell
    • 3 years ago
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    thanks!!!!

  15. princeofwetlot
    • 3 years ago
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    you're welcome

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