Question 14 Let f(x) = √7x. Using the definition of derivative at a point, f'(a) = lim enter the expression needed to find the derivative at x x→a = 2. f'(2) = lim x 2 After evaluating this limit, we see that f'(2) = 0/10 pts 100 99 Details f(x) = f(a) xa Finally, the equation of the tangent line to f(x) where x = 2 is

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