SAT1备考数学练习（五）

　　为了方便广大考生更好的复习，和谐英语网综合整理了SAT1备考数学练习，以供各位考生考试复习参考,希望对考生复习有所帮助。

　　sat考试官方网站每日一题小结，以下是SAT1数学部分。Read the following SAT test question, then click on a button to select your answer.

　　What is the equation of the line parallel to the x-axis and four units above the x-axis?

　　A.= –4

　　B.= 4

　　C. –4

　　D.= 0

　　E.= 4

　　Correct Answer: E

　　Here"s Why:

　　A line that is parallel to the x-axis and four units above the x-axis is the vertical translation of the x-axis four units upward. Since the x-axis is a horizontal line and has equation y = 0, it follows that the line parallel to the x-axis and four units above the x-axis has equation y = 4.

　　Difficulty: Easy

　　Question Type: Standard Multiple Choice