Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

f of x equals four divided by x. and g of x equals four divided by x
heeeeelp

Question

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. 

f of x equals four divided by x.  and g of x equals four divided by x  
heeeeelp

vocaloid · Answer

well right now we have

f(x) = 4/x
and
g(x) = 4/x

find f(g(x))

mrmanman305 · Answer

would you do 4(4/x)

vocaloid · Answer

should be 

4/(4/x)

mrmanman305 · Answer

sorry that sent twice

vocaloid · Answer

since f(x) = 4/x and g(x) = 4/x, replace "x" with "4/x" to get 4/(4/x)

mrmanman305 · Answer

is that equal to x?

vocaloid · Answer

well, you tell me.

do you remember the rule for dividing by fractions?

mrmanman305 · Answer

oh yes. it would be equal to x lol

vocaloid · Answer

yup! f(g(x)) = x, and you can probably figure out that g(f(x)) also equals x since it's the same math process

mrmanman305 · Answer

much appreciation @Vocaloid thank you