Let f : N → N be a function defined as f(x) = 4x + 3 where Y = {y ∈ N: y = 4x + 3 for some x ∈ N}. Show that f is invertible and its inverse is:
Answer & explanation
Correct answer: option 4
Function is increasing $x=\frac{y-3}{4}=g(y)$
Let f : N → N be a function defined as f(x) = 4x + 3 where Y = {y ∈ N: y = 4x + 3 for some x ∈ N}. Show that f is invertible and its inverse is:
Correct answer: option 4
Function is increasing $x=\frac{y-3}{4}=g(y)$