Differentiation using first principles ** DO ON PAPER** please keep working out and explanation seperate.

Do only (A, B) for question 1

\f3 WE8 If g(x) = x2 - 6x, find: a g'(x) using first principles. b the value(s) of x where the gradient equals 0.5 By first deriving the gradient function f'(x), evaluate f'(3) when f(x) is equal to: a 7x +5 b x2 + 4x c x2 - 3x + 2 d x3 - 5.6 MC Which of the following do not denote the gradient at any point on a graph? (One or more answers may be correct.) A f'(x) B lim f( x+h)- f(x) c lim f ( xth) - f(x) h-0 h h-too h D dy E f(xth)-f(x) dx h