Let f be a differentiable function with f(4) = 6 and f' (4) = 2, and let g be the function defined by g(x) = x · f(x). Which of the following is an equation of the line tangent to the graph of g at the point where x 4 ? O y = 2x O y- 24 = 14(x – 4) O y - 6 = 2(x - 4) O y-6 14(x - 4)

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