The graph of y = f(x) is shown above. If 0 less than or equal to t less than or equal to 5, and if (t,v) is on the graph of function f, which of the following must be true?

　　(A) negative 10 less than or equal to v less than or equal to negative 5

　　(B) negative 5 less than or equal to v less than or equal to 0

　　(C) 0 less than or equal to v less than or equal to 5

　　(D) 5 less than or equal to v less than or equal to 10

　　(E) 10 less than or equal to v less than or equal to 15

　　Explanation

　　The second coordinate of a point on the graph corresponds to v. From the graph, you can see that for 0 less than or equal to t less than or equal to 5, the smallest value of v is 5 and the greatest value is 10, so 5 less than or equal to v less than or equal to 10.

    更多SAT备考内容请关注新东方网SAT频道。

　　（编辑：马菲）