Okay i have a few function questions im gonna post. Im completely confused with these so any help would be great.

Minimum or maximum value of:


if f(x)=x^2+9 and g(x)=x-4,
find (g*!@#$%^&3)

next is

if f(x)=x^3+x^2-x-1 and g(x)=x+1,
find (f/g)(n)

and the possible solutions to the problem are

A) n^2-x-1
B) (n^2+x-1/n+1)
C) n+1
D) n^2-1

and last, find the zeroes of

thanks for any help!

  1. 👍 0
  2. 👎 0
  3. 👁 64
asked by Colin
  1. << find the zeroes of
    f(x)= 2x^2-10 >>

    f(x) = 2(x^2 -5)
    = 2(x + sqrt 5)(x - sqrt 5)
    When either of the x-containing factors is zero, f(x) is zero.

    <<Minimum or maximum value of:
    and .. >>
    Since you aren't taking calculus and presumably do not know about deriviatives, I suggest you use the method of "completing the square"
    f(x)= 2(x^2 + 2x) + 1
    = 2 (x^2 + 2x + 1) -1
    = 2(x+1)^2 -1
    It should be evident that this will be have a minimum when x+1 = 0. That tells you what x is there.

    1. 👍 0
    2. 👎 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science 8

    IN science we are talking about chemical prefixes and compound names. For homework there are some questions where I have to "Name the Ionic Compounds" He talked about it but I am still confused, here is one of the questions. ht

    asked by Micheal on December 17, 2008
  2. Math

    Complete the function table and write the function rule. Input (x) -------------- | 32 | 20 | |-------|-------| | 14 | 2 | |-------|-------| | ? | -6 | |-------|-------| | -2 | -14 | |-------|-------| | -10 | ? | -----------------

    asked by Dejavu on March 23, 2017
  3. Geometry

    I HAVE A QUESTION. When I post a question and there is now response to it does it means that my answer to my questions are correct? I post two questions yeaterday and received no response .Today I post the same two questions and

    asked by DANIELLE on June 14, 2007
  4. Science 7R - Worksheet (Q5)

    ********* Sorry I post too much question but these are the questions I'm having trouble with, the other questions on my science worksheet i done it by myself This is the last one I need help with and that's it E. How is the

    asked by Laruen on April 22, 2012
  5. to bobpursley

    My classmates friends want me to post their questions as well.Thats why there are multiple names is there a problem. Yes. You are posting duplicate or even triplicate questions. That is silly. If we have answered one, the answers

    asked by minemine on November 3, 2006
  6. Calculus

    Determine the points of inflection of the function. f(x) = x + sin x (−2π ≤ x ≤ 2π) I'm still completely confused

    asked by Starr on March 30, 2011
  7. Calculus...again

    I'm gonna have abunch of questions, cause I have a test. >_< If you planened to fence a rectangular pasture that must contain 4000 sq meters, what dimensions would require the least amount of fencing? Perimeter= 2l + 2w area=

    asked by Tezuka on September 30, 2006
  8. college algebra

    for the function g(x)=5x^6-3x^3+x^2-x, list the possible rational zeros of g(x) and then use synthetic division to factor g(x) completely. ***i'm confused, doesn't this problem need a constant?****

    asked by niki (help me!) on April 17, 2013
  9. Math 7 - Homework Question Check (Q2)

    37. On the lines below, explain why the graph you choose is misleading? Answer - The reason why graph A was misleading is because on the left side (where the numbers are) it started from 0 to 50, then 50 to 100, AND 100 to 300!

    asked by Laruen on April 16, 2012
  10. English

    Grapes of Wrath chapter 14-15 -Theres gonna come sompin outta this, gonna change the whole country." comment

    asked by Pini on January 23, 2008

More Similar Questions