Thus, the topic begins by addressing the solutions to problems that can be solved by taking the square root of both sides. The basic introduction covers most of definitions and introductory subtopics, including approximating roots. Irrationals are introduced but their relation to roots is not entirely clear. Properties are given short treatment in exposition and examples, which also fits the functional theme. There is a better presentation for finding solutions of radicals, also fitting this theme.
Examples are few here, as are problems.
The distance formula is given, but very briefly without much exposition or examples. The problem count is again low and only to an easy difficulty level. In general, the presentation is clear and there usually are enough examples. There are modest problem counts in general that may be sufficient to cover low difficulty cases. The functional approach encourages the transition between numeric representations and those with variables, which is what gives this text at least some strength.