Let f(x)=(x+4)^3. What are the gradient and equation of the chord/secant between (2,f(2)) and (2+0.005,f(2+0.005))? The gradient m=     (input your answer to 3 decimal places). The equation of the chord/secant is y=ax+b where: a=    and b= Enter both values a and b correct to 3 decimal places.

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A:

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A: