Results 1 to 3 of 3

Thread: Need 10th grade math help! Exponential growth/decay.

  1. #1

    Joined
    Nov 2012
    Posts
    854
    Userbars
    3
    Thanks
    214
    Thanked
    128/109
    DL/UL
    37/0
    Mentioned
    114 times
    Time Online
    36d 19h 35m
    Avg. Time Online
    12m

    Need 10th grade math help! Exponential growth/decay.

    For exponential growth functions:
    a>0 and b>1
    Is: -(1/3)*(3^x)
    still exponential growth? even though a<0
    the function is noted as a(b^x)

    Also, same for decay
    a>0 and 0>b>1
    if a is -1 would it still be an exponential decay?
    decay still is a(b^x)
    Example: -3(2/3)^x

    Would they still be 1) exponential growth and 2) exponential decay?

  2. #2

    Joined
    Jan 2013
    Posts
    35
    Userbars
    0
    Thanks
    5
    Thanked
    4/3
    DL/UL
    18/0
    Mentioned
    3 times
    Time Online
    2d 17h 41m
    Avg. Time Online
    N/A

    Need 10th grade math help! Exponential growth/decay.

    I'm a little bit confused with the wording on the question...

    The first equation is exponential decay, the second is exponential growth. Is that what your asking?

    So 1. No, it would not still be exponential growth and 2. No, it would not still be exponential decay.
    Last edited by music.speaks; 01-17-2013 at 08:55 PM.

  3. #3

    Joined
    Nov 2012
    Posts
    854
    Userbars
    3
    Thanks
    214
    Thanked
    128/109
    DL/UL
    37/0
    Mentioned
    114 times
    Time Online
    36d 19h 35m
    Avg. Time Online
    12m
    Quote Originally Posted by music.speaks View Post
    I'm a little bit confused with the wording on the question...

    The first equation is exponential decay, the second is exponential growth. Is that what your asking?

    So 1. No, it would not still be exponential growth and 2. No, it would not still be exponential decay.
    I was saying, that since a would be "-1" would the equations still be exponential decay/growth, or what would they classify as?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •