A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Using the point-slope form, write an equation for the line with slope 0, containing the point (4,2).

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

    point-slope form: \[y-y _{1}=m(x-x _{1})\]

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

    If were using point slope form(PSF) then were going to substitute the values of the ordered pairs into our equation. So knowing that our ordered pairs go in the order (x,y) *alphabetical order* then what values would we substitute in for y sub one and x sub one.

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

    Are those the letters we need to solve?

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

    Well were trying to isolate y. but for now we need to know where everything goes before we start solving.

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

    Oh then I'm not sure what would x sub 1 and y sub 1 equal to

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

    Your ordered pair is (4,2) and we know that the ordered pair follows (x,y) so you're literally just taking the y and x value and plugging them in for your y1 and x1 values. or in other words y sub 1 and x sub 1.

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

    Then what would we substitute in for the x and y values in the equation?

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

    4,2

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

    I thought you said we substitute those numbers in for x sub 1 and y sub 1

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

    Yes!

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

    y - (y sub one) = m(x - *x sub one*) Look at the PSF equation again.

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

    Ok so I'm substituting the coordinates and this is what I understand:\[2-(2)=m(4-4)\]

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

    Is that right?

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

    No you only do it for y1 and x1, you don't substitute it in for ALL the variables.

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

    Its going to look like y - 2 = m(x - 4) Now we have to substitute in the slope which is the value for m.

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

    What does it tell you that the slope(m) is?

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

    It's 0.

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

    So how do I solve for both x and y?

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

    Exactly so what would our equation look like now?

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

    It would look like y - 2 = 0(x - 4)

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

    Right?

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

    @Teddyiswatshecallsme r u there?

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

    Yes I am! Sorry.

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

    Yes it would look like that you are correct! Now do you know about the distributive property of multiplication?

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

    @200205650

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

    What is that again?

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

    he distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

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

    So how would you use that when applying to the formula?

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

    SO basically you're going to DISTRIBUTE the 0 to the x and to the 4 and it becomes x because you're just distributing nothing

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

    Oh like that! Sorry! It's harder to understand some of the terms.

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

    Yeah its a bit confusing sometimes so it because y - 2 = x - 4

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

    Wouldn't the 4 become a 0 when you are distributing?

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

    Now we need to do some order of operations to get that -2 over to the right side of the equation.

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

    Well no. Because its like if i was giving out nothing. If i give you nothing and you have 4 dollars to begin with how many dollars are you left with?

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

    Still 4 dollars. But I thought anything multiplied with 0 will become 0.

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

    Aren't you multiplying in this case?

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

    Hmmm. Hold on. I need to do a bit of research. cx

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

    Alright

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

    Do you have multiple choice options?

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

    I believe you are correct. So that would end up being, y - 2 = x So what do you need to do next?

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

    No I don't unfortunately. :/

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

    Put the -2 on the other side of the equal sign

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

    So the answer would be y = x + 2.

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

    Yes!

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

    You are correct!

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

    Thanks for your help!

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

    You're welcome! :D Thanks for your cooperation.

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

    Your welcome!

  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.