$2.$ You measure a cubic container and find it to be about $10$ cm on each side. From this, you conclude that it holds $1000$ cc $.$ However, your measurement is accurate only to within $+0\mathrm{.}1$ cm $.($So you can be sure that the side is between $9\mathrm{.}9$ and $10\mathrm{.}1$ cm $.)$

A$.$ What are $\backslash ($ x$,$ f$($x$)\backslash ),$ and $\backslash ($ a $\backslash )$ in this problem?