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Nikkibaby71410

16. Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain. (1 point) Yes, their slopes are different. No, their slopes are not opposite reciprocals. No, their slopes are not the same. Yes, their slopes have the same number in them.

  • one year ago
  • one year ago

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  1. BluFoot
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    Use (Y2-Y1)/(X2-X1) to find the slopes of each lines. If one is the negative reciprocal of the other, then they are perpendicular.

    • one year ago
  2. Nikkibaby71410
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    so is the answer a cause their slopes are different?

    • one year ago
  3. Nikkibaby71410
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    I dont like math -.- im going with B

    • one year ago
  4. Nikkibaby71410
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    oh crap i meant C

    • one year ago
  5. Nikkibaby71410
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    cause if thier slopes are different then its not perpendicular. its C

    • one year ago
  6. Nikkibaby71410
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    No im great with every other class i just hate math!

    • one year ago
  7. BluFoot
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    He's right. You're lazy.

    • one year ago
  8. BluFoot
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    I gave you the procedure, follow it!

    • one year ago
  9. Nikkibaby71410
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    omg fine give me a second!

    • one year ago
  10. Nikkibaby71410
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    So its -2/3

    • one year ago
  11. Nikkibaby71410
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    and since on is negative they are perpendicular?

    • one year ago
  12. Nikkibaby71410
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    one*

    • one year ago
  13. BluFoot
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    Ok the slope of the first one is -2/3. What about the second one?

    • one year ago
  14. Nikkibaby71410
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    oh wait hold on

    • one year ago
  15. Nikkibaby71410
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    1/8

    • one year ago
  16. Nikkibaby71410
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    So -2/3 and 1/8 and those are perpendicular right cause one is a negative?

    • one year ago
  17. Nikkibaby71410
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    I thought if something had the same slope than meant it was perpendicular?

    • one year ago
  18. BluFoot
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    They're not perpendicular because one is not the negative reciprocal of the other.

    • one year ago
  19. BluFoot
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    If they were 2/3 and -3/2, they would be perpendicular. Or 7/8 and -8/7. Or 15/100 and -100/15

    • one year ago
  20. BluFoot
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    Same slope = parallel

    • one year ago
  21. Nikkibaby71410
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    what exactly does that mean -.- i feel so dumb im 18 and dont know this pellet

    • one year ago
  22. BluFoot
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    Negative reciprocal means you invert the fraction and make it negative. So can you find the negative reciprocal of 5/6?

    • one year ago
  23. Nikkibaby71410
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    -6/5

    • one year ago
  24. BluFoot
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    Good :) So if the slopes aren't negative reciprocals of each other, they're not perpendicular!

    • one year ago
  25. Nikkibaby71410
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    ohh so the answer is B woop yay :D

    • one year ago
  26. BluFoot
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    :D

    • one year ago
  27. Nikkibaby71410
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    you are awesome :) Thanks so much!

    • one year ago
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