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Tahmina Group Title

can some one please help me with this::

  • one year ago
  • one year ago

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  1. Tahmina Group Title
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    Write the equation of a line that is: perpendicular to 9x + 3y = 15 and goes through the point (-6, 7)

    • one year ago
  2. Brittni0605 Group Title
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    What do you know about the slopes of perpendicular lines?

    • one year ago
  3. Fox375 Group Title
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    y = - 3x + 18

    • one year ago
  4. Fox375 Group Title
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    i used a program called geogebra.

    • one year ago
  5. Tahmina Group Title
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    how did u get that

    • one year ago
  6. Fox375 Group Title
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    Geogebra

    • one year ago
  7. Fox375 Group Title
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    http://www.geogebra.org/cms/

    • one year ago
  8. Brittni0605 Group Title
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    Programs are good, but its important to know how to do it by hand.

    • one year ago
  9. Tahmina Group Title
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    I know i found it but I dont want to use it

    • one year ago
  10. Brittni0605 Group Title
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    Ok, do you want me to help you?

    • one year ago
  11. Fox375 Group Title
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    It is very simple yo use. They even provide help for you too solve these kind of probelms.

    • one year ago
  12. Tahmina Group Title
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    Yes I need your help Brittni0605

    • one year ago
  13. Brittni0605 Group Title
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    Ok, so what do you know about the slopes of perpendicular lines?

    • one year ago
  14. Tahmina Group Title
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    you have to multiply them by -1

    • one year ago
  15. Tahmina Group Title
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    rite? idk

    • one year ago
  16. Brittni0605 Group Title
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    Umm, sort of on the right track. Perpendicular lines have slopes that are negative reciprocals. Do you know what that means?

    • one year ago
  17. Tahmina Group Title
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    No can u be a little clear on that?

    • one year ago
  18. Tahmina Group Title
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    So you mean B mutiply 3 *-1/3

    • one year ago
  19. Tahmina Group Title
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    i got 3 because its the slope isnt it?

    • one year ago
  20. Brittni0605 Group Title
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    |dw:1355586908724:dw|

    • one year ago
  21. Tahmina Group Title
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    Okay whats the slope then wait you need to find the slope first rite?

    • one year ago
  22. Brittni0605 Group Title
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    Yes.

    • one year ago
  23. Tahmina Group Title
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    slope is 3

    • one year ago
  24. Tahmina Group Title
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    rite?

    • one year ago
  25. Brittni0605 Group Title
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    No, its not 3. Show me your work.

    • one year ago
  26. Tahmina Group Title
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    okay

    • one year ago
  27. Tahmina Group Title
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    |dw:1355587318034:dw|

    • one year ago
  28. Brittni0605 Group Title
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    Your work is correct. But you said the slope is 3. Your work shows something different.

    • one year ago
  29. Tahmina Group Title
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    oh sorry its negative 3 thanks for showing that

    • one year ago
  30. Brittni0605 Group Title
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    No prob. SO, now that you know the slope of your line is -3, what is the slope of its perpendicular line?

    • one year ago
  31. Tahmina Group Title
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    \[-3 *1/3\]

    • one year ago
  32. Tahmina Group Title
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    rite?

    • one year ago
  33. Tahmina Group Title
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    wait what about the points (-6,7)

    • one year ago
  34. Brittni0605 Group Title
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    No, remember if the slope of your line is -6, the slope of its perpendicular line is the negative reciprocal (1/6)

    • one year ago
  35. Tahmina Group Title
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    wiat whats the slope of the perspendicular then

    • one year ago
  36. Tahmina Group Title
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    *perpendicular

    • one year ago
  37. Brittni0605 Group Title
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    Perpendicular slope is the negative reciprocal of the slope of your line

    • one year ago
  38. Tahmina Group Title
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    so the slope of my line is -3 that means my perpendicular slope is -3 *1/3 rite?

    • one year ago
  39. Brittni0605 Group Title
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    No, you're not multiplying anything.

    • one year ago
  40. Tahmina Group Title
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    so my perpendicular lines slope is 1/3 rite

    • one year ago
  41. Brittni0605 Group Title
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    Yes.

    • one year ago
  42. Tahmina Group Title
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    so do i substitute with y=mx+b

    • one year ago
  43. Brittni0605 Group Title
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    Yes.

    • one year ago
  44. Tahmina Group Title
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    can u check my work???/

    • one year ago
  45. Brittni0605 Group Title
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    Yes, ill check your work.

    • one year ago
  46. Tahmina Group Title
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    okay imm attach it

    • one year ago
  47. Brittni0605 Group Title
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    Ok.

    • one year ago
  48. Tahmina Group Title
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    Nevermind my computers having problems?

    • one year ago
  49. Brittni0605 Group Title
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    Umm, ok

    • one year ago
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