Question

Please help me with thisexplainBRAINLIEST AVAILABLE!!

Answer 1

See the comment above. 
Interchange the x and y in the original equation. call f(x) = y just for ease of understanding.
y = 3x + 5
Inverse
x = 3y + 5 Now solve for y.
(x - 5) = 3y Divide by 3
(x - 5)/3 = y

Remove the brackets.
x /3 - 5/3 = y  

The answer is D <<<<< answer.

Answer 2

The closest to my explanation of this question i got was p(x)