【考点】线性和指数方程的特征
【难度系数】★★★☆☆
【答案评析】观察数据,发现x每增加1,y增加14/4, 说明y的变化量随着x变化而均匀变化,即delta y/delta x= 14/4=7/2,为定值,也就表明x和y是线性关系,斜率为7/2.
答案选D
SAT数学考试知识点解析汇总 | |
【考点】线性和指数方程的特征
【难度系数】★★★☆☆
【答案评析】观察数据,发现x每增加1,y增加14/4, 说明y的变化量随着x变化而均匀变化,即delta y/delta x= 14/4=7/2,为定值,也就表明x和y是线性关系,斜率为7/2.
答案选D
SAT数学考试知识点解析汇总 | |
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