## JB1625 one year ago Points R, S, and T are plotted on a number line. The coordinate of point R is –6. Points S and T are the same distance from point R. What could be the coordinates of S and T? A. S = 0, T = 6 B. S = –4, T = –2 C. S = –9, T = –12 D. S = –10, T = –2

1. zepdrix

Grr I was going to try and draw it :) But my drawing tool is acting up lol.

2. JB1625

Oh lol:)

3. zepdrix

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4. zepdrix

They want RS to be equal to RT. That's what it means for R to be the same distance from S as it is from T. Is that true for option A here?

5. JB1625

Yes I think that that is correct. Thank you

6. JB1625

And can you tell me again how I can alert you when I have a question?

7. zepdrix

The distance between R and S = 6. From -6 to 0 is a distance of 6. But from R to S, and then S to T, that is a distance of 6 + 6. So no. They are not equal. Part A is not the correct option.

8. JB1625

Ya that is what I was just about to say

9. JB1625

Dop you know what the correct answer is?

10. zepdrix

Instead of graphing, it might just be easier to set this up as a subtraction problem :) $$\large\rm R=-6$$ For option B: $$\large\rm S=-2,\quad T=-4$$ So then subtracting S from R, or R from S, tells us the distance between them. $$\large\rm RS=-2-(-6)=4$$ $$\large\rm RT=-4-(-6)=2$$ Again these lengths are not equal.

11. zepdrix

Try option D: $$\large\rm RS=-6-(-10)=?$$ $$\large\rm RT=-2-(-6)=?$$

12. JB1625

Yes that was it thank you so much:) And can you tell me again how I can alert you if I have a question?

13. zepdrix

You can use the @ symbol followed by a person's name. If I'm busy, you can try to get someone else's attention :D All the 99 scores at the top of the lobby are a bunch of smarty pants. Example: @JB1625

14. JB1625

Wait which lobby?

15. JB1625

:)

16. zepdrix

Near the top right, you should see a little green text that says: $\rm \color{green}{\triangle\text{ 172 members online}}$Something like that. It brings you to the ... lobby or whatever :d

17. JB1625

Hmmm I don't see it