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第五章 相交线与平行线
5.1 相交线····················································································· 1
5.2 平行线及其判定····································································· 22
5.3 平行线的性质········································································· 36
5.4 平移······················································································· 46
第六章 实数
6.1 平方根················································································· 52
6.2 立方根················································································· 57
6.3 实数···················································································· 63
第七章 平面直角坐标系
7.1 平面直角坐标系····································································· 67
7.2 坐标方法的简单应用······························································ 78
第八章 二元一次方程组
8.1 二元一次方程组····································································· 86
8.2 消元——解二元一次方程组··················································· 93
8.3 实际问题与二元一次方程组················································· 105
8.4 三元一次方程组的解法························································ 111
第九章 不等式与不等式组
9.1 不等式·················································································· 115
9.2 一元一次不等式··································································· 121
9.3 一元一次不等式组································································ 127
第十章 数据的收集、整理与描述
10.1 统计调查············································································ 132
10.2 直方图················································································ 140
10.3 课题学习 从数据谈节水····················································· 144