Um investidor inicia um dia com x ações de uma empresa. No decorrer desse dia, ele efetua apenas dois tipos de operações, comprar ou vender ações. Para realizar essas operações, ele segue estes critérios:

I. vende metade das ações que possui, assim que seu valor fica acima do valor ideal (Vi);

II. compra a mesma quantidade de ações que possui, assim que seu valor fica abaixo do valor mínimo (Vm);

III. vende todas as ações que possui, quando seu valor fica acima do valor ótimo (Vo).

O gráfico apresenta o período de operações e a variação do valor de cada ação, em reais, no decorrer daquele dia e a indicação dos valores ideal, mínimo e ótimo.

Quantas operações o investidor fez naquele dia?

(UERJ) The Genre of Autobiography and Autofiction

Derived from three Greek words meaning “self”, “life” and “write”, autobiography is a style of writing that has been around nearly as long as history has been recorded. Yet, autobiography was not classified as a genre within itself until the late eighteenth century.

In his book, Inside out, E. Stuart Bates offers a functional definition of autobiography as “a narrative of the past of a person by the person concerned”. That definition, however, is too broad for some literary critics. Many, such as Philippe Lejeune, wish to define the genre more narrowly: “(a) retrospective prose narrative produced by a real person concerning his own existence, focusing on his individual life, in particular on the development of his personality”.

Despite disagreements concerning how inclusive the category of autobiography should be, there are characteristics that are common to the majority of autobiographical works. These features are the grammatical perspective of the work, the identity of the self, self-reflection and introspection.

Most autobiographies are written from the first person singular perspective. The author, the narrator and the protagonist must share a common identity for the work to be considered an autobiography. This common identity could be similar, but is not identical. The self that the author constructs becomes a character within the story that may not be a completely factual representation of the author’s actual past self.

In their book The voice within, Roger Porter and H. R. Wolf state that “truth is a highly subjective matter, and no autobiographer can represent exactly what happened back then, any more than a historian can definitively describe the real truth of the past”.

Because the author cannot describe events objectively, even the most accurate autobiographies have fictional elements. The blurring of fiction and truth characteristic of autobiography has even led to the creation of a subdivision within the genre of autobiography that deals with fictionalized self-accounts. For this style of writing that blends characteristics of both fiction and autobiography, Serge Doubrovsky coined the literary term “autofiction”.

The difference between traditional autobiography and the genre of autofiction is that autobiographers are attempting to depict their real life, while writers of autofiction are only basing their work upon real experiences. Writers of autofiction are not expected to be as historically accurate as possible as autobiographers are. According to Alex Hughes, authors of autofiction are saying “this is me and this is not me”. ¹This sums up autofiction. Autofiction draws from the life of the writer with the addition of fictional elements to make the work more than just a life story.

Autobiography is a popular genre. ²Writers of memoirs and life stories never lack an audience. People are interested in the actual lives of others and want to know about others’ pasts and feelings and desires. Autobiography is a way to organize the story of a life and reflect on the past in order to better understand the present.

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Writers of memoirs and life stories never lack an audience. People are interested in the actual lives of others (ref. 2)The semantic relationship between the two sentences above can be made explicit by the addition of following connective:

LUXO EMBAIXO D’ÁGUA

Os submarinos particulares são o novo brinquedo de quem gosta de navegar

                          Disponível em < http://veja.abril.com.br/120907/p_108.shtml> Acesso em 01/12/2010

Um mergulhador estava a 27 metros de profundidade. A 12 metros abaixo dele, estava um submarino C-Quester .

a) Qual a profundidade do submarino C-Quester?

b) Quantos metros o submarino ainda poderia descer?

(UEFS) Um motorista olha para o seu retrovisor e vê a imagem de seu rosto, como sendo direita e cinco vezes menor. Estando o motorista a 60,0 cm do retrovisor, é correto afirmar que o tipo do espelho e o módulo do raio de curvatura desse espelho são, respectivamente,

(ENEM 2012 1ª APLICAÇÃO) A moderna “conquista da Amazônia” inverteu o eixo geográfico da colonização da região. Desde a época colonial até meados do século XIX, as correntes principais de população movimentaram-se no sentido Leste-Oeste, estabelecendo uma ocupação linear articulada. Nas últimas décadas, os fluxos migratórios passaram a se verificar no sentido Sul-Norte, conectando o Centro-Sul à Amazônia.

OLIC, N. B. Ocupação da Amazônia, uma epopeia inacabada.
Jornal Mundo, ano 16, n. 4, ago. 2008 (adaptado).

O primeiro eixo geográfico de ocupação das terras amazônicas demonstra um padrão relacionado à criação de