f(x) = 9 - 4x, g(x) = -2x + 4
Find (f + g)(x)

Question

akshay_budhkar · Answer

(f+g)x=fx + gx

so u just need to add those two functions

you can do that?

anonymous · Answer

so 9-4x + -2x+4 , Im really confused with these problems

akshay_budhkar · Answer

yes

akshay_budhkar · Answer

add them

akshay_budhkar · Answer

what is 9+4?

anonymous · Answer

13

akshay_budhkar · Answer

ok now what is -2x + -4x ?

anonymous · Answer

-6x

akshay_budhkar · Answer

so your answer is -6x + 13 isn't that simple :D

akshay_budhkar · Answer

you get it or are you still confused?

anonymous · Answer

oh okay, yes i get it, There is a similar problem I have but different which I also dont get

akshay_budhkar · Answer

ok ask here

anonymous · Answer

I think I can go it just confused on why it has a open dot  above the f
  Given f(x) = 4x + 13 and g(x) = 4x - 1, find (f  g)(x).

akshay_budhkar · Answer

ok now you got to multiply the two functions
(f.g)x= f(x).g(x)

anonymous · Answer

okay same thing just multiplying

akshay_budhkar · Answer

yea (f+g)x you add f.g you multiply  f-g you subtract f/g you divide the functions

akshay_budhkar · Answer

so u get it now?

anonymous · Answer

I think so trying to do it now

akshay_budhkar · Answer

do it if u need any help or get stuck ask for help :D

anonymous · Answer

thanks

anonymous · Answer

16x+12?

akshay_budhkar · Answer

lol i dont know i didnt try

akshay_budhkar · Answer

dont u know quadratic equations n stuffs?

anonymous · Answer

Math is my worst subject, good at everything else

akshay_budhkar · Answer

umm it will take time to teach u everything hehe cant u multiply to linear equations?

anonymous · Answer

I can do some things lol, I use online calculators to help

akshay_budhkar · Answer

lol u need to go step by step i dun know how to teach u everything.. i will ask some1 else to as i am leaving now as well lets see if some1 can help you

anonymous · Answer

thanks its fine, you helped enough :)