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Nikkibaby71410

  • 2 years ago

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.

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  1. BluFoot
    • 2 years ago
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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.

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

  3. Nikkibaby71410
    • 2 years ago
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    I dont like math -.- im going with B

  4. Nikkibaby71410
    • 2 years ago
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    oh crap i meant C

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

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

  7. BluFoot
    • 2 years ago
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    He's right. You're lazy.

  8. BluFoot
    • 2 years ago
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    I gave you the procedure, follow it!

  9. Nikkibaby71410
    • 2 years ago
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    omg fine give me a second!

  10. Nikkibaby71410
    • 2 years ago
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    So its -2/3

  11. Nikkibaby71410
    • 2 years ago
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    and since on is negative they are perpendicular?

  12. Nikkibaby71410
    • 2 years ago
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    one*

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

  14. Nikkibaby71410
    • 2 years ago
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    oh wait hold on

  15. Nikkibaby71410
    • 2 years ago
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    1/8

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

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

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

  19. BluFoot
    • 2 years ago
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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

  20. BluFoot
    • 2 years ago
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    Same slope = parallel

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

  22. BluFoot
    • 2 years ago
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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?

  23. Nikkibaby71410
    • 2 years ago
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    -6/5

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

  25. Nikkibaby71410
    • 2 years ago
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    ohh so the answer is B woop yay :D

  26. BluFoot
    • 2 years ago
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    :D

  27. Nikkibaby71410
    • 2 years ago
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    you are awesome :) Thanks so much!

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