A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Write an equation for the line described. Write it in standard and point intercept form(if possible) through (1,3), m=-2 through (-5,4), m=-3/2 i need a little explanation also, if you can give it... studying for a test.

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok so you get those in standard form by first using this formula: \[(y - y_{1}) = m (x - x_{1})\]

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so, for the first equation, this is (y - 3) = -2(x - 1)

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y - 3 = -2x + 2

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    to get it into standard form (Ax + By = 0) move 2x to the other side, giving you 2x + y - 3 = 2

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    depending on qhat the quiz asks you, the final answer will either be 2x + y = 5 or 2x + y - 5 = 0.

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    *what

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Did you mean slope intercept when you said point intercept?

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes.. sorry

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So the second one. Standard form : y-4=-3/2(x-(-5))

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I get confused with the fractions?

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    And all those negatives are throwing me off..

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Lots of people have trouble with it. We know that a negative negative is a positive. That gives you y - 4 = -3/2(x + 5)

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Then, you multiply x and 5 by -3/2

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a positive and a negative multiplied together is a negative. That gives you -3/2x - 15/2

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -15/2 is reached when you multiply -3/2 and 5/1

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you understand that?

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes, so far so good.

  18. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Then I need to put it in standard form..

  19. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Well, that wasn't a complete point slope form, so let me explain. Above you gave me y - 4 = -3/2(x - (-5)) Your complete slope form would be y = -3/2(x - 1), getting the 4 on the correct side. So, we'd have -3/2x + 3/2

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you understand how I got that?

  21. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Why dont you want it in the same form as the previous one? ax=by=0?

  22. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry ax+by=0

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    When I convert 4 into a fraction is that 8/2?

  24. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    When I subtract that 8/2 from the right side I come up with -3/2x-7/2?

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hold on a second

  26. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it's easier to set up standard form if you first have it in slope intercept form.

  27. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no, you want to get the constant on the right side of the equation BEFORE you multiply the whole thing by -3/2.

  28. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y = -3/2 + 3/2

  29. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    constant meaning?

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Constant is a number with no variables; 3a would be a coefficient, 3 is a constant.

  31. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    where and how are you getting that +3/2

  32. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, let me explain

  33. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y-4=-3/2(x=5) can you take me from there?

  34. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Okay. (you were right, I was getting confused.)

  35. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (x+5)

  36. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    first you add 4 to each side, giving you y = -3/2(x + 9)

  37. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    multiply both terms by -3/2, giving you -3/2x -27/2

  38. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    move -3/2x to the left side of the equation, giving you 3/2x + y = 27/2

  39. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sorry, -27/2

  40. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    depending on the curriculum, your final answer would be 3/2x + y = -27/2 or 3/2x + y + 27/2 = 0

  41. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    let me rewrite it out myself and see if that's the right answer

  42. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    My book gives me an answer of 3x+2y=-7

  43. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do I just multiply by 2 to clear the fraction?

  44. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no, when you're talking about lines you don't take out the fraction

  45. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but let me work it out and see if I can get it that way multiplying by 2

  46. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, it seems to me that your book does want you to multiply by 2, but my curriculum didn't teach me that

  47. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok.. thank you so much for being patient with me...this helped!

  48. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you're welcome :D

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.