Maths with David

    IBDP. AA. HL. Differentiation. Gradient of a Tangent

    If it exists, the gradient of the tangent to the curve y = f(x) at the point where x = a is lim_{ h \to 0 } \frac{ f(a+h) - f(a) }{h}

    Worked Example

    Find the gradient of the tangent to f(x) = x2 at the point (2,4)

    Exercise

    Answers