This problem requires a browser capable of processing javaScript WeBWorK using host: https://webwork.libretexts.org, format: libretexts

Below is an "oracle" function. An oracle function is a function presented interactively. When you type in an [math] value, and press the --f--[math] button and the value [math] appears in the right hand window. There are three lines, so you can easily calculate three different values of the function at one time.

Find the largest [math] so that [math] when [math].
[math]

Note: Your answer must be within [math] of the correct answer.

xf(x)