2010年01月06 SAT最新每日一題

字號(hào):

2010年01月06日
    考試類型:Standard Multiple Choice
    (Mathematics)
    Read the following SAT test question, then click on a button to select your answer.
    A line segment containing the points (0, 0) and (12, 8) will also contain the point
    A. (2.3)
    B. (2.4)
    C. (3.2)
    D. (3.4)
    E. (4.2)
    正確答案: C
    解析:
    Here's Why:
    The slope of the line containing the points (0, 0) and (12, 8) is , or . If (x, y) is another point on this line segment, then x and y must satisfy = , or y = x. Of the five choices, (3, 2) is the only point for which y = x.
    Difficulty: Medium