SAT官方每日一题是collegeboard每天都会发布的题目，关于SAT考试的三个部分的各个题型。下面我们就一起来看一下2015年4年16日SAT官方每日一题吧。
Read the following SAT test question and then click on a button to select your answer.
A manager estimates that if the company charges p dollars for their new product, where 0 ≤ p ≤ 200 , then the revenue from the product will be function r (p) = 2000 p -10 p 2 dollars each week. According to this model, for which of the following values of p would the company’s weekly revenue for the product be the greatest?
(A) 10
(B) 20
(C) 50
(D) 100
(E) 200
The correct answer is D
Explanation
The graph of function r (p) = 2000 p -10p 2 is a downward-facing parabola that intersects the x-axis at 0 and at 200 . Parabolas are symmetric, so the maximum value of r occurs at 100 , which is halfway between 0 and 200 . (When p=100 , the value of r is r (100) = 2000 (100))- 10 (100 2) =100000 .)
以上就是关于2015年4月16日SAT官方每日一题中数学选择的详细内容，包括了题目和选项以及答案，后面附有一道相关的练习题。大家可以在备考SAT的过程中关注SAT每日一题的内容，这样就可以更好有不间断的练习，也就能在日积月累的过程中得到提高。
您还可能关注：
