Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

salparadise64

  • one year ago

hey guys, sal here would like some help with these piecewise graphs

  • This Question is Closed
  1. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    http://vvcap.net/db/Ea8WobNvpKnowqaCZesR.htp

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

    step one: find the domain of each piece, step two: find the equation that describes the interval on each domain step three: combine

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

    ill give you a different example |dw:1360553796475:dw|

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

    |dw:1360554027098:dw| the domain for the first piece is 0≤x≤2 the equation for this interval is y=x the domain for the second piece is 2≤x the equation for the second piece is y=2

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

    combining \[y=\begin{cases}x&0≤x≤2\\2&2≤x\end{cases}\]

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

    makes sense?

  7. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes!! a million times yes!! let me work it out! thank you so much, about to give up.

  8. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you help me with number 1 on my link above? just to know im doing it right?

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

    what have you got so far?

  10. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    for the first one i got \[f(x) = \left\{ 3 ; 0 \le x \le 3\right\}\]

  11. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and \[\left\{ x ; 3\le x \le 6 \right\}\]

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

    what did you get for the equation of the second interval , y=x? thats not right

  13. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how?

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

    i mean y=-x+7 the slope is -1 and the y- intercept would be at y=7

  15. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how did you get that thou/

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

    |dw:1360558315458:dw|

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

    |dw:1360558377826:dw|

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

    |dw:1360558456267:dw|

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

    \[y=mx+b=-x+7\]

  20. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    OHHHHHH

  21. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    is that the way to do it thou? or is there some equation/

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

    um, you could find the equation of the line using the Two-point formula, since you have at least two points

  23. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how would i got about doing that?

  24. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i thik thats what they want us to do.

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

    the Two-point formula\[y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\]

  26. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do i get just any set of points?

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

    so you could use the points \((x_1,y_1)=(3,4)\) \((x_2,y_2)=(6,1)\) but you could choose different points on the line and you should get the same answer

  28. salparadise64
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you!

  29. 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.