I have the answer, but how would I solve this question step-by-step? Thank you.

35. Determine the open intervals on which the function is increasing and on which the function is decreasing. Enter o to indicate the interval is empty. f (x) = x+2 A) Increasing on (-0o, -2), (-2, 00) ; Never decreasing (0) B) Increasing on (-0o, oo) ; Never decreasing (D) C) Never increasing (0) ; Decreasing on (-00, co) D) Never increasing () ; Decreasing on (-0o, -2), (-2, 00)