Question

how do i find the inverse of the function
f(x)=5 . log(2x + 3)

Answer 1

switch x and y and solve for y in terms of the new x.
x=5log(2y+3)
log(2y+3)=(x/5)
2y+3=e^(x/5)
y=(e^(x/5)-3)/2
Check that f-1(f(x))=x