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Hey,
Can you please help me if you know any of this [4 questions]. i'll probably read this right before school tomarrow. My test is on domain, range, translations[i get most of that]. and it's on functions like f(g)=, g(f)=,f(f)=, g(g)=. and it is on getting the inverse of functions. alright i need help with the following:
heres an example:
find the inverse.
f(x)= 2-x/3+x
i got -3/2x, and if that's right, how do i check it because i need to know that for the test.
also i have an algerbra question:
how do you divide 2/(3/4). it's like a fraction in a fraction. i tryed to solve that and got 8/3.
okay, and if lets say we have f(x)=1/(x+2).
how do you translate the numerator onto a graph? [logically explain please]
and now one more question.
okay, let f(x)=
1+x x

im out of school and haven't learned this since the begining of my sophomore year so i can't really help with all of it.

as for dividing the 2 over the 3/4 [i hope thats what you meant] you do it like this...

(2/1)/(3/4) [2/1 is the same thing as 2, which you probably know haha]

then you multiply by taking the reciprocal. so its...

(2/1)/(4/3)

you multiply across so its 2x4=8
and
1x3=3

it can't be reduced so the answer is 8/3
so you were right hahah

hope i helped !
im sorry i couldn't help you with the other things !

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