Welcome :: Homework Help and Answers :: Mathskey.com

Q&A
Unanswered
Categories
Users
Ask a Question

Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

Q&A Categories
BASIC MATH (93)
PRE-ALGEBRA (441)
ALGEBRA 1 (2,220)
GEOMETRY (864)
ALGEBRA 2 (2,751)
TRIGONOMETRY (1,187)
PRECALCULUS (1,903)
CALCULUS (2,802)
STATISTICS (129)
PHYSICS (659)
CHEMISTRY (137)
MECHANICAL ENGINEERING (64)
ELECTRICAL ENGINEERING (207)
Winplot Tutorials (2)

Most popular tags

solving-equations system-of-equations functions math slope-intercept-form physics homework-help trigonometric-identities integration limits substitution-method calculus

13,459 questions

17,854 answers

1,446 comments

811,068 users

I need to find f o g(x) and g o f(x).

0 votes

f(x)=3x^2-5 g(x)= 8/x
Thank You.

composite-functions
evaluating-functions
functions

asked Mar 14, 2014 in ALGEBRA 1 by chrisgirl Apprentice

Share this question

Google+ Facebook Twitter LinkedIn Reddit

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 votes

The functions are f(x) = 3x² - 5 and g(x) = 8/x.

To find the fog(x)

= f(g(x))

= f(8/x)

= 3(8/x)²- 5

= 3(64/x²) - 5

= (192/x²) - 5.

Therefore, fog(x) = (192/x²) - 5.

To find the gof(x)

= g(f(x))

= g(3x ²- 5)

= 8/(3x² - 5).

Therefore, gof(x) = 8/(3x² - 5).

answered Mar 14, 2014 by dozey Mentor

Please log in or register to add a comment.

Related questions

Find functions f and g so that f o g = H.

asked Jun 10, 2020 in PRECALCULUS by anonymous

functions
two-functions
evaluating-functions
composite-functions

Let f(x)=x^2+x and g(x)=2x+1. Find and simplify the following:

asked Mar 14, 2014 in ALGEBRA 1 by harvy0496 Apprentice

composite-functions
evaluating-functions
functions

Given the function f(x)=2x^2+1 and g(x)=x-4, find (fog)(x).

asked Mar 14, 2014 in ALGEBRA 1 by dkinz Apprentice

composite-functions
evaluating-functions
functions

h(x)=(fog)(x). h(x)=(x^2+2x/x^3-1)^3/2 find f(x) and g(x)

asked Jan 28, 2020 in PRECALCULUS by anonymous

composite-functions
evaluating-functions
two-functions
functions

I need help with getting f o f and g o g of these functions for composition please !

asked Dec 21, 2017 in PRECALCULUS by anonymous

composite-functions
functions

Find f o g o h.

asked Jan 9, 2015 in CALCULUS by anonymous

functions
composite-functions

Express the function in the form f o g o h.

asked Jan 9, 2015 in CALCULUS by anonymous

functions
composite-functions

What is the funtion of fof; gog; given f(x)=3-5x and g(x)=1-3x?

asked Mar 14, 2014 in ALGEBRA 1 by homeworkhelp Mentor

evaluating-functions
composition-of-functions
functions

f(x)=-3x+4 and g(x)=3x+3

asked Mar 14, 2014 in ALGEBRA 1 by andrew Scholar

evaluating-functions
composition-of-functions
functions

what is [fog](x) if f(x)= 2x +7 and g(x)= -3x+4.

asked Mar 14, 2014 in ALGEBRA 1 by payton Apprentice

evaluating-functions
composition-of-functions
functions

For f(x)= x+3 and g(x)= 3x+3, find the following functions

asked Oct 6, 2018 in ALGEBRA 1 by anonymous

functions
composite-functions
exact-value

Functional notation: If ƒ(x) = x²-1 and g(x) = 3x, calculate g(4) / ƒ(2)

asked Mar 12, 2014 in ALGEBRA 1 by abstain12 Apprentice

evaluating-functions
composite-functions

Given f(x) = |x − 2| and g(x) = 3/(x^2 + 2)

asked Dec 24, 2017 in ALGEBRA 1 by anonymous

composite-functions
functions

Given the functions f(x) = -3x and g(x) = (x +2)^2. What is the vakue of f(g(3))?

asked Mar 5, 2014 in ALGEBRA 2 by chrisgirl Apprentice

evaluating-functions
functions

h(x)=(fog)(x). h(x)= squareroot of 2x^2-x+2 find f(x) and g(x)

asked Jan 28, 2020 in PRECALCULUS by anonymous

two-functions
composite-functions
functions

h(x)=(fog)(x). h(x)=1/x+2 Find f(x) and g(x)

asked Jan 28, 2020 in PRECALCULUS by anonymous

two-functions
composite-functions
functions

Let f(x)--and g(x)- Find and simplify (fog)(x)

asked Sep 20, 2018 in PRECALCULUS by anonymous

composite-functions
functions

Find f ∘ g, g ∘ f, and g ∘ g. f(x) = 4x, g(x) = x4 (4th power)

asked Apr 22, 2018 in PRECALCULUS by anonymous

composite-functions
inverse-functions
two-functions
functions

Given f (x) = – 2x^2 + x -3 and g(x) = - x - 2, find the following:

asked Mar 6, 2014 in ALGEBRA 2 by andrew Scholar

functions
composite-functions
domain-of-a-function

Let f(x)=x+4 and g(x)=x^2+8x –3. Find the function (f+g)(x), (f-g)(x), (f g)(x), f o g

asked Dec 6, 2013 in PRECALCULUS by homeworkhelp Mentor

composite-functions

Copyright © 2024 MATHSKEY. All Rights Reserved. Sitemap|Terms Of Use|Disclaimer|Contact Us|FAQ

...