## seashell Group Title 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 2 years ago 2 years ago

1. seashell Group Title

please teach me step by step

2. princeofwetlot Group Title

midpoint of x = $$\Large \frac{x_1 + x_2}{2}$$

3. princeofwetlot Group Title

midpoint of y = $$\Large \frac{y_1 + y_2}{2}$$

4. princeofwetlot Group Title

okay...midpoint of x means x coordinate of the midpoint...what is the x coordinate of your midpoint?

5. seashell Group Title

-2

6. princeofwetlot Group Title

now...what is the x coordinate of one of the endpoints?

7. seashell Group Title

3

8. princeofwetlot Group Title

so... $\large -2 = \frac{3 + x_2}{2}$ got that? i just substituted

9. seashell Group Title

ohhhhhhh

10. seashell Group Title

:D yes!

11. princeofwetlot Group Title

so i assume you can do the rest?

12. seashell Group Title

then i do the same for y?

13. princeofwetlot Group Title

yes

14. seashell Group Title

thanks!!!!

15. princeofwetlot Group Title

you're welcome