The table shows values of a force function $f(x)$ where $x$ is measured in meters and $f(x)$ in newtons. Use Simpson's Rule to estimate the work done (in joules) by the force in moving an object a distance of 18 meters, giving your answer correct to the nearest whole number. $$\begin{array}{|c|c|c|c|c|c|c|c|}\hline x\,(m) & 0 & 3 & 6 & 9 & 12 & 15 & 18 \\ \hline f(x)\,(N) & 9.8 & 9.1 & 8.5 & 8.0 & 7.7 & 7.5 & 7.4 \\ \hline \end{array}$$

Work done $\approx$ J