【考点】linear function一次函数
【难度系数】★★☆☆☆
【答案评析】此题要求找出表格内的数据满足的函数关系。依照题意,r表示表格的最后一列monthly rental price,是因变量;p表示表格中间的一列purchase price,是自变量,但是单位换成了thousands。只需把p=128,r=950逐一代入选项中验算,即可唯一确定答案。
答案选D
| SAT数学考试知识点解析汇总 | |
【考点】linear function一次函数
【难度系数】★★☆☆☆
【答案评析】此题要求找出表格内的数据满足的函数关系。依照题意,r表示表格的最后一列monthly rental price,是因变量;p表示表格中间的一列purchase price,是自变量,但是单位换成了thousands。只需把p=128,r=950逐一代入选项中验算,即可唯一确定答案。
答案选D
| SAT数学考试知识点解析汇总 | |
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