Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ineedyouubiebs

  • one year ago

Write an equation for a line parallel to 12+8x=-3y and passing through (3,-5)

  • This Question is Closed
  1. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Ready?

  2. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes:)

  3. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    This is the same idea. You need a line parallel to a given line. Parallel lines have the same slope. So the first job is to find the slope of the given line. To do that, you solve the equation for y. First, switch sides. -3y = ...

  4. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    -3y=8x+12

  5. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Good. Second job, what is happening to y?

  6. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    umm will be dividing -3y to 8x and 12??

  7. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes, you divide every term on both sides by -3 to undo the y being multiplied by -3.

  8. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That will end up being y=-8/3-4 ?

  9. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    remember the x on the right side. |dw:1359264332902:dw|

  10. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1359264433972:dw|

  11. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    YAY! I was correct so then I will need to plug in (3,-5) right?

  12. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now you know the slope you need is m = ?

  13. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    m=-8/3

  14. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Great. Now the new equation is going to have m = -8/3, and point (3, -5) If you plug in -8/3 for m and 3 for x and -5 for y into y = mx + b, you can solve for b.

  15. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    b will equal to 3(:

  16. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1359264870692:dw|

  17. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Since you now know m and b, what is the equation of the new line?

  18. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ~le dances~ The equation will be y=-8/3+3 =D

  19. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That is it! Great work again!

  20. ineedyouubiebs
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    THANK YOU SO MUCH FOR YOUR GREAT TUTORING! YOUR AMAZING=D=D

  21. mathstudent55
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Thanks. You're not so bad yourself. :-)

  22. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.