The equation of a curve is $$\(y=2 x^{2}-3\)$$. Two points $$\(A\)$$ and $$\(B\)$$ with $$\(x\)$$-coordinates 2 and $$\((2+h)\)$$ respectively lie on the curve. Find and simplify an expression for the gradient of the chord $$\(A B\)$$ in terms of $$\(h\)$$. ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ .

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