CB官方出品SAT数学练习题daily practice(2018年4月10日)
- 2018年04月11日23:07 来源:小站整理
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小站sat频道为大家2018年4月9日的SAT数学每日一练:考察一次函数的图像规律。配有答案,解析,众考生,慢慢操练吧。
Each year from 2007 to 2015, a group of people were selected at random and surveyed about their use of online radio. The survey asked respondents whether or not they listened to online radio in the last month. The scatter plot shown gives the results of the survey, where P represents the percent of respondents who reported listening to online radio and t represents years since 2007. Which of the following equations best models the relationship between t and P?
A.P=0.23t+18
B.P=t+20
C.P=2.3t+20
D.P=4.3t+18
答案:D
解析:
Choice D is correct.
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