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Derivative as a limit: numerical

Problem

Jude wants to find the derivative of h(x)=12ln(x) at the point x=4.
His table below shows the average rate of change of h over the intervals [x,4] or [4,x] for x-values that get increasingly closer to 4:
xIntervalAverage rate of change, h(x)h(4)x4
3.9[3.9,4]3.0381
3.99[3.99,4]3.0038
3.999[3.999,4]3.0004
4.001[4,4.001]2.9996
4.01[4,4.01]2.9963
4.1[4,4.1]2.9631
From the table, what does the derivative of h(x)=12ln(x) at x=4 appear to be?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4