题目

.已知:点A(m﹣1,4m+6)在第二象限. (1)求m的取值范围; (2)我们把横、纵坐标均为整数的点称为“整数点”,请写出符合条件的“整数点A”. 答案:【解答】解:(1)由题意得,, 解不等式①得,m<1, 解不等式②得,m>﹣, 所以,m的取值范围是﹣<m<1; (2)∵m是整数, ∴m取﹣1,0, 所以,符合条件的“整数点A”有(﹣2,2),(﹣1,6). ________ he helps, ________ he feels. [  ] A. The more people; happier B. The more people; the happier C. The more people; the more happily D. The more people; the more happyly
数学 试题推荐