Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Shido88

  • one year ago

h(3) h(x)= 5|x|/x

  • This Question is Closed
  1. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Aylin

  2. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i plug this one in calculator and got 5 as final answer

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

    That looks right.

  4. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    alright cool :D

  5. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    for the next one it's asking for h(-2/3) but you can't use a negative for absolute value right? or is it ?

  6. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    umm why over 5 ? isn't it over -2/3 ?

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

    @Shido88 Sorry, I got distracted. Back now. Absolute value as a function either leaves the thing inside of it alone if it is 0 or positive, or multiplies it b negative 1 if it is negative. So |x|=x IF x is greater than or equal to 0, and |x| = -x IF x is less than 0. So for h(-2/3) you would have\[h(\frac{-2}{3})=5\frac{|\frac{ - 2}{3}|}{\frac{-2}{3}}=5\frac{\frac{2}{3}}{\frac{-2}{3}}\]

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

    Hmm, looks like the negative signs didn't display properly... Well, the 2s that are shifted way over to the right are supposed to have negative signs in front of them.

  9. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so basictly anything negative inside the absolute value will turn into positive ?

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

    Yep!

  11. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and once u turn the negative into positive then the absolute value sign goes away ?

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

    In this case, yes.

  13. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what about h(3a) ?

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

    Ahh, well this depends on if a is positive or not. :P Find the answer for if a is positive, and then the answer for if a is negative. Then you say which one it is based on a.

  15. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hmm ? what ? lol

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

    If \[a \ge 0\]then\[h(3a)=5\]and if\[a < 0\]then\[h(3a)=-5\]

  17. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i see

  18. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what do i have to do to know if a>0 ?

  19. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how did you get h(3a)= 5 ? do you just cancel out the 3a ?

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

    Yeah.\[5\frac{3a}{3a}=5\]

  21. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh i see

  22. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so if it was h(a-2) would the final answer be 5 anyway ?

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

    Either 5 or -5, depending on a.

  24. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok!

  25. Shido88
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    gtg now, thanks again for helping me Aylin :)

  26. 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.