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Function composition
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Questions (129)
f(x)= x^2+3 ; g(x)=3x-1
Check These Please? 1.(fg)(-1) = 5 2. (f o g)(1) =10 How would you solve this? 1. (g o f)(x)
1 answer
asked by
Sara
275 views
Let f(x)=4x+2 and g(x)=5x^2+4x
After Simplifying, f(g(x)
3 answers
asked anonymously
64 views
Let f(x)=4x+2 and g(x)=5x^2+4x
After Simplifying, (fog)(x)=
2 answers
asked anonymously
31 views
Given:
f(x)=2x^2-x+1 g(x)=2 sin x h(x)=3^x Determine: a) f(g(x)) b) (h^-1 o f)(x) c) g(f(h(x)))) Please show steps, thank you
1 answer
asked by
Rei
282 views
Suppose f(x)=7x-2 and g(x)= sqrt x^2-2x+9.
(f(g(x))= (f(g(-2))=
3 answers
asked anonymously
38 views
Suppose f(x)= sqrt x^2+6x+10 and g(x)=9x+8
f(g(x))= f(g(-5))=
3 answers
asked anonymously
42 views
Let f(x)=3x-4x^2
Find f o f o f So... F(f(x)) I got a really big answer..... I think I might have done something wrong when doing
1 answer
asked by
L.Bianchessi
296 views
Given f(x)= x^2-3+2 and g(x)=2x-4 find (fg)(-3)
3 answers
asked by
Missy
336 views
given functions f,g, and h find f o g o h state exact domain. show work
f(x)=1/x g(x)=lnx h(x)=2x+15
3 answers
asked by
Sara
315 views
Let g(x) = -2x + 8 and h(x) = 3x + 4. For what value of x is composition (g o h)(x) = (h o g)(x). If no such value exists, type
2 answers
asked by
Brianna
592 views
find (FxG)(X) and (GxF)(X) when f(x)=5x^2-1 and g(x)=2/x
2 answers
asked by
lexi
1,020 views
If f(x) = 2x − 1 and g(x) = x^2 + 5, find (f of g)(−3) and (g of f)(2).
Can anyone help ?
1 answer
asked by
Alex
247 views
Reiny - I don't understand can you explain how you did this -
I will assume you meant g(x) = (x-3)^2 (f o g)(11) = f(g(11)) =
1 answer
asked by
John
801 views
f(x)=1/x-2
g(x)=4/x find (fog)(x) my answer to this function was x/4-2x this is a possoble answer I believe to be 4x-8 is this
1 answer
asked by
John
356 views
Find f X g , g X f , and f X f
f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were:
1 answer
asked by
Hannah
414 views
find (f composed of g)(x)=given f(x)=2x squared +3 g(x)=4x cubed +1
1 answer
asked by
Arielt
263 views
What is the domain of f/g?
f(x) = x / x+1 g(x) = x^3 Please explain! Thank you
1 answer
asked by
Hannah
337 views
Homework help quick
given f(x)= (X+1)/(x) and g(x)= x squared +1 find (g f)(-9) the options are 145/21 83/82 145/64 17/9 this is
1 answer
asked by
Ariel
386 views
Example 1:
Let f(x) = ex and g(x) = �ãx Find: (a) f(g(x)) (b) g(f(x))
4 answers
asked by
kate
266 views
"Given that f(x)=3x-4 g(x)=2x²+5
Find g(f(x))" Can you helpme out?
1 answer
asked by
Sonny
390 views
Given that f(x)=x, g(x)=x-1:
h(x)=sqrt(x-1) find f0g0h.
1 answer
asked by
Matrix school 2
348 views
Hello, i'm currently doing functions and I was fine until I got to multiplication. I really don't know what i'm doing, and would
5 answers
asked by
Jess
405 views
Find f X g
3 sqrt of x+1 X x^3+1
3 answers
asked by
Dan
306 views
Use these functions: f(x)=3x-2
g(x)=2 h(x)=4x 1. What is f(g(x))? 2. What is g(18)? 3. Find h(5).
3 answers
asked by
Amy
324 views
Find g(f(x)) and f(2g(x))
where f(x)=2x^2-1 and g(x)= the absolute value of x-1
1 answer
asked by
Sean
234 views
Find g(f(x))
Where f(x)=2x^2-1
1 answer
asked by
Sean
252 views
Given that f(x) = x + 3 and g(x)=x²-x, find (f + g)( − 4), if it exists.
1 answer
asked anonymously
15 views
find functions of f and g so that fog = H
h(x)=(3x+2)^6 please show work
3 answers
asked by
anonymous
1,365 views
A size 36 shoe in France is size 3.5 in England. A function that converts shoe sizes in France to those in England is g(x)=
1 answer
asked by
Help
1,085 views
confrused with this one too let f(x)=x^2+6 and g (x) =4x-5 find (f ° g)(-7)
still don't get it and no one responds to my replys
3 answers
asked by
hokoslavia
977 views
find the functions f and g so that f of g =H. H(x)=(6x+9)^4
please show work so i understand this better. thank you
1 answer
asked by
alli
932 views
Find (fog)(2)
f(x)=Squareroot 4-x; g(x)=1-3x^2 Find (gof)(-2) for the same problem.
2 answers
asked by
Taylor
931 views
find (FxG)(X) and (GxF)(X) when f(x)=5x^2-1 and g(x)=2/x
2 answers
asked by
lexi
956 views
Given that f(x) = x^2-3 and g(x) = 2x+1, find each of the following, if it exists.
a. (fg)(-root3) b. (gf)(-1/2)
5 answers
asked by
Breanna
913 views
If f(x)= (4cos^4x+2cos^2x+2sin^2x-x^9-1/2cos4x)^(1/9). Find f(f(2))
2 answers
asked by
Kaur
881 views
If f(x)=-x+4 and g(x)=x2-12, what is f(g(-5))?
1 answer
asked anonymously
18 views
For the functions below, solve for f(g(h(-1))).
f(x)=(x-1)^2 g(x)=2x^2+3x-1 h(x)=(x+3)
4 answers
asked by
Anonymous
347 views
Given the functions f and g below, what is (f o g)(11)?
f(x) = x − 20 g(x) = (x − 3)2
1 answer
asked by
Thomas
774 views
ket f(x)=5 x − 4 and g(x) = x^2 − 8. Compute the following functions.
1. f(g(x)) = 2. g(f(x)) = 3. f(f(x)) = 4. g(g(x)) =
2 answers
asked by
Cara
743 views
If f(x)=2x+1/x-3 and g(x)=1-x/2
Show that f(g)(x)=g(f)(x)
3 answers
asked by
lindsay
734 views
If g(t) = 5t+1 and h(n) = 2(n - 7), what is the value of h(g(3))?
2 answers
asked by
John
664 views
Redo problem 13 from section 1.8 of your textbook (page 62), but use the functions in the questions below rather than the
2 answers
asked by
Anonymous
691 views
Let h(x) = 3 x2 + 2 x + 1.
Let g(x) = 3√{x} + 3. (Note: If there is a nonmathematical symbol in the preceding expression, then
2 answers
asked by
Cara
657 views
I had to solve the function g of f where f is x^2+1 and g is sq. root of x. I wrote this out as the sq. root of x^2+1. The ^2
3 answers
asked by
Adriana
653 views
If f(x)=x^4+6, g(x)=x-2 and h(x)=sqrt(x), then f(g(h(x)))=
Please help ASAP I really confused with this math problem!!! :(
2 answers
asked by
Andrea
628 views
Not sure how to do this problem need a little help at least to start.
If h(x) = 1/(x+3)^3 then determine f(x) and g(x) such that
3 answers
asked by
Nicole
574 views
If f(x)=-x^2 and g(x) =x+1 find (fog)(x) and (gof)(x)
2 answers
asked by
Chala safi
565 views
Given that f(x) = x^2-3 and g(x) = 2x+1, find each of the following, if it exists.
a. (fg)(-root3) b. (gf)(-1/2)
4 answers
asked by
Alicia
540 views
Find 1 - (g o f)(x) and simplify
1 answer
asked by
MathTutor
491 views
Find (f◦g)(x) and (g◦f)(x).
f(x)=4x(squared)+3; g(x)=4x−2(f◦g)(x)=______(Simplify your answer.) I
2 answers
asked by
Joy
464 views
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Parent Categories (12)
Algebra
Algebraic Equations
Calculus
Equations
Equations and Expressions
Functions
Functions and Composition
Mathematics
Operations
Operations with Functions
Shoe Size Conversion
Trigonometry