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Let f (x) = Vx+6 . We will use the definition of derivative to find the derivative of f (a) (i) What is the definition of derivative of f (a) ? Of' ( 2 ) = f( ath ) - f (2 ) Of' (x) = lim f ( xth ) -f (x-h) h-0 Of' (x) = lim f(Ith) -f(2) h-0 Of'(a) = lim f ( +2 h ) - flathy 2 h (ii) Which one is the correct statement (the next step to find f (a) by definition)? Of' ( 2) = lim Vath Vx+6 h - 0 th Of' ( x) = lim Vx+6 Vx+6 Of' ( ac) = lim Vath+6 Vx+6 C Of' ( 20 ) = Vath+6 Vx+6