Question

How would I find the inverse of a question like f(x)=10x+4...?

Answer 1

write f(x) as y

y=10x+4

interchange variables

x=10y+4

solve for y i believe

so your inverse would be

x-4/10

Answer 2

to check simply do

\[f(f^{-1}(x)) \]

Answer 3

which should equal X