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SAT数学备考经典模拟题训练43

2018年06月05日 10:27:36来源:SAT考试网
导读:备战SAT考试,薄弱项要好好复习,优势项更要牢牢的保持住!对于中国考生来说,数学科目就是我们的优势项目,所以更要用心复习发挥出自己的优势!下面小编给大家推荐一些数学模拟题,大家要认真做哦。

>>SAT数学模拟题:SAT数学备考经典模拟题训练43

>>SAT考试辅导

练习题:

SAT数学

练习题解析

5.Correct Answer: A

Explanation:

If we consider the triangle bounded by the x axis, the line, and the perpendicular to the x-axis passing through (5,5), then, since the slope (5/6) is given by the y-side (5 units) of the triangle divided by the x side, the x side is 6. This means the intercept on the x-axis is at (-1, 0). Now consider other triangles bounded by the line, the x-axis and the perpendicular to the points given in the answer choices, and check that they give a slope of 5/6. For example, in (A) the x side of the triangle will be 2.5 + 1 units long, and the y side will be 2. This does not give a slope of 5/6. (You can use the formula y2 - y1 / x2 - x1 to find the slope. For this use the intercept on the x axis for x1 and y1)

6.Correct Answer: A

Explanation:

Rate (R) is directly proportional to d. We write this as R = k.d, where k is a constant.

Rate is inversely proportional to T. We write this as R = k. 1/T, where k is a constant.

In the combined expression, d must appear in the numerator and T in the denominator. This is the case in A.

上面的题目大家都做完了吗,想要战胜SAT考试,那前期的复习肯定是少不了的!学习更多考试知识点就登录坦途网SAT考试频道吧,小编在这里等你哦!

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