Question

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

f of x equals eight divided by x and g of x equals eight divided by x

Answer 1

f(x) = 8/x
g(x) = 8/x

Answer 2

yes

Answer 3

f(g(x)) = 8/(8/x)
= 8 * x/8
= x

Answer 4

Would you just do the same to g(x) then?

Answer 5

yes, do the same g(f(x))

Answer 6

g(f(x))= 8/(8/x)
=8*x/8
=x
it's all exactly the same right?

Answer 7

yes! it is.