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Properties of functions. Support the Project: http://donationalerts.ru/r/valeryvolkov My Skype classes: https://vk.com/id224349278 New VKontakte Group: https://vk.com/volkovvalery Domain of a function, set of function values, intervals of increasing and decreasing function, intervals of constant sign of a function, zeros of a function, largest and smallest values of a function. Algebra 9th grade.