Mark (√) against the correct answer in the following:
Let 
Then f - 1(y) = ?
f(x) = 
⇒y = 
x⟺y
⇒x = 
⇒3yx + 4x = 4y
⇒y(3x - 4) = - 4x
⇒y = 
x⟺y
⇒x = 
1
Mark (√) against the correct answer in the following:
Let Then f - 1(y) = ?
f(x) =
⇒y =
x⟺y
⇒x =
⇒3yx + 4x = 4y
⇒y(3x - 4) = - 4x
⇒y =
x⟺y
⇒x =