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Destinyyyy
 one year ago
For f(x)=3x and g(x)=x+6, find the following functions. A. (f*g)(x) B. (g*f)(x) C. (f*g)(2) D. (g*f)(2)
Destinyyyy
 one year ago
For f(x)=3x and g(x)=x+6, find the following functions. A. (f*g)(x) B. (g*f)(x) C. (f*g)(2) D. (g*f)(2)

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Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0For A. I got 3x+18 For B. I got 3x+6 I'm stuck on C.

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0I assume that's the answer for C.. I want to know how to solve it.

james1769
 one year ago
Best ResponseYou've already chosen the best response.0the same way u solved for the others

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0If I solve it the same way I did the other two I get stuck at 3(g(2))

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1substitute x for g(2) into f(x) function

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0How is it wrong? I followed the example.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1when we multiply same bases we should `ADD` their exponents so 3x times x =?

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0This is my first time doing this type of problem so I dont really know what im doing.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1x is same as x to the one power apply the rule when we multiply same bases we should `add` exponents \[\huge\rm x^m \times x^n=x^{m+n}\]

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0Where are you getting a second x from?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1we should multiply g(x) by f(x)

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0My example told me to do this (f*g)(x)= f(g(x))= 3(g(x))= 3(x+6)= 3x+18 It doesn't have x^2

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1well (f*g)(x) means f(x) times g(x)

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1where did you get that example ?

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0My examples says (f*g)(x) means f(g(x)). My online class on Pearson. Its a system example.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1f(g(x)) composition means (f o g)(x) where you should substitute x for g(x) into f(x) function

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1so (f *g)(x) means f(x) times g(x) ^^^product of two function

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0I entered my answer for the assignment and it says its correct.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1what do you mean by `*` sign is it multiplication ?

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0My examples for C does this f(x)=3x g(x)=x+7 (f*g)(5), find the value of (f*g)(x) when x=5. (f*g)(x)= 3x+21 (f*g)(5)= 3(5)+21 36

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0Yes * means multiply

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1looks at this http://home.windstream.net/okrebs/page42.html (f*g)(x) means f(x) times g(x)

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0For that example above its not clear where the 21 comes from.

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0x+7 is the example from the system. x+6 is the problem im working on. And the link you posted I worked on that 2 problems ago.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1well in that example the replaced x from with x+7 in f(x) function \[\large\rm f(x)=3\color{Red}{x} ~~~g(x) ~~~\large\rm f(x+7)=3(\color{ReD}{x+7})\]=\color{Red}{x+7}\]

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1so when you distribute parentheses by 3 you will get 3x +21 3 times 7 = 21

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0Okay. I thought it was that but wasn't sure. So the answer for C is 33.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1yes 24 is correct according to that example

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.0And the answer for D. is 13
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