Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mskyeg Group Title

Compare each function with the parent function. Without graphing, what are the vertex, axis of symmetry, and transformations of the parent function? y = –|8x + 4| – 2

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Possible answers: (1/2,2) ; x=-1/2 ; translated to the left 1/2 unit and up 2 units. (-1/2,-2) ; x=-1/2 ; translated to the left 1/2 unit, up 2 units, and reflected in the x-axis. (1/2,2) ; x=1/2 ; translated to the right 1/2 unit and up 2 units, and reflected in the y-axis. (1/2,-2) ; x=1/2 ; translated to the right 1/2 unit and up 2 units

    • 2 years ago
  2. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    First thing you should ask yourself is, "What is the parent function?". When you figure that out, you'll be half way there.

    • 2 years ago
  3. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    is it y=lxl

    • 2 years ago
  4. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yup

    • 2 years ago
  5. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what do i do next?

    • 2 years ago
  6. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Well, one thing you can do is insert the possible (x,y) values into the formula to see which ones work. Once you do that, you should be able to eliminate at least two of the answers.

    • 2 years ago
  7. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what?

    • 2 years ago
  8. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    i am so confused

    • 2 years ago
  9. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Are you not given (x,y) = (1/2, 2) ? Try that and see if it works. If not, try (x,y) = (-1/2,2)

    • 2 years ago
  10. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Watch me plug one of the values into the formula: y = –|8x + 4| – 2 (2) = -|8(1/2) + 4| - 2

    • 2 years ago
  11. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Does that make any sense?

    • 2 years ago
  12. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    i think so

    • 2 years ago
  13. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    oh wait ya thats simple

    • 2 years ago
  14. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    but that only eliminates 2 of the answers what about the last two

    • 2 years ago
  15. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    its not 1 or 3 right?

    • 2 years ago
  16. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    There's only one possible right answer. I just checked again. If you do the arithmetic properly, you should be able to find it.

    • 2 years ago
  17. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    You're on the right track.

    • 2 years ago
  18. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    is it number 2?

    • 2 years ago
  19. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    The second option is correct.

    • 2 years ago
  20. mskyeg Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yay:) thank you so much:)

    • 2 years ago
  21. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Good job. Sometimes you have to think outside the box with these questions.

    • 2 years ago
    • Attachments:

See more questions >>>

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.