Question

If f(x) = 3x and mc010-1.jpg which expression could be used to verify that g(x) is the inverse of f(x)?

Answer 1

Thank you for asking this question.

If  f(x)=x-2

The inverse which is g(x) is

g(x)=x+2

f(g(x))

f(g(x))

=(2+x)-2

=2-2+x

=x

Or,

f(x) = 3x

y=3x

x=3y  

1/3x=y

1/3x=f^(-1)(x)

If there is any confusion please leave a comment below.