A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

help! graphing piece wise function

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

    @peachpi

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

    |dw:1439342436794:dw|

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

    this is the graph I'm working on

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

    @Hero @nincompoop @pooja195

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

    what's the function?

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

    It doesn't give the whole function to me

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

    |dw:1439342819554:dw|

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

    this is what I have, the functions are missing, the graph I drew above is supposed to be interpreted so the function can be filled in

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

    oh ok. are you sure the bottom one is -3≤x≤3? It looks like it should be 3 ≤ x ≤ maybe 4 or 5

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

    and is it a curve or a straight line for |dw:1439343210666:dw|

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

    straight

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

    yes I'm sure the numbers are correct, The point is just big

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

    can you take a picture of the problem or give me coordinates for the points? |dw:1439343890005:dw|

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

    once you have the two end points for the bottom segment, we can write an equation in y = mx + b form, but we need the exact points to get it right

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

    That's the graph they gave me in the lesson, it's not precise

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

    the points are -1,1 and 3,5

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

    -1,1 is a straight line

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

    3, 5 is a sloped line

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

    that runs between 3,2 and 5,4

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

    the equation they give me is |dw:1439344737330:dw|

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

    The regions CANNOT overlap if it is the definition of a FUNCTION.

  22. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1439344850372:dw|

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

    yes @Loser66

  24. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, for the first piece, f(x) = 3 when \(-1\leq x\leq 1\), got this part? |dw:1439345082272:dw|

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

    yes

  26. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    for the second piece, it is a slant line. Can you find the equation of that line by finding the slope??

  27. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1439345172848:dw|

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

    the slope is 1

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

    or 2/2

  30. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yup, now, pick one point

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

    1,1

  32. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    nope, the point ON the line. (given points)

  33. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1439345247505:dw|

  34. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    which one??

  35. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just pick, either of them.

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

    0,3

  37. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    (0,3) is NOT on the given line.

  38. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    YOu have only 2 given points (3,2) and (5,4). Pick one of them. YOu CANNOT pick other point

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

    3,2

  40. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, the line is y = mx +b where m is the slope. And we know that m =1 hence y = x +b -x both sides, what do you get?

  41. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1439345490498:dw|

  42. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    My method is too difficult to understand??

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

    Just graph the two pieces as if no restriction existed. Later, go cross out the stuff where the Domain is not specified.

  44. Loser66
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @tkhunny they didn't give the function. We have to find it. That is the problem \(f(x) =\begin{cases}--------if~~-1\leq x\leq1\\---------if~~~3\leq x\leq 5\end{cases}\)

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

    I see. We're given the graph? @Kaelyn78 , you should know the two-point form of a line - or its cleaner variant, the point-slope form. Heard of them?

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

    Please stop saying "function" when the Domains overlap.

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

    I've heard of point slope form

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

    Given the two points, calculate the slope. Use one of the points and the slope and fill in the values from the point-slope form. You will be done in no time.

  49. Jack1
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    u say that about calculating 2nd order derivatives of complex equations tho @tkhunny u crazy mathlete u ;)

  50. 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.