【简答题】水准仪的粗略整平是指转动()使圆水准器气泡居中;水准仪的精确整平是指转动()使水准管气泡居中。
【简答题】已知一次函数y=(2m+1)x+m-3。 (1)若这个函数的图象经过原点,求m的值; (2)若这个函数是一次函数,且y随着x的增大而减小,求m的取值范围; (3)若这个函数的图象不经过第二象限,求m的取值范围。
【简答题】微倾水准仪的粗略整平是指转动( )使圆水准器气泡居中;微倾水准仪的精确整平是指转动( )使水准管气泡居中。
【简答题】若一次函数y=(m-2)x+1-m的函数值y随x的增加而减少,且函数图象与y轴交于x轴下方,则m的取值范围是______.
【简答题】Complete the sentences using the words in the box. take / do / evaluate / / make 1 Do not always wait for your boss to tell you how well you are doing. You also need to __________ your progres...
【多选题】Complete the sentences using the words in the box.
E.
make 1 . Do not always wait for your boss to tell you how well you are doing. You also need to __________ your progress yourself. 2 . Vladimir is hoping to __________ research in informatics. 3 . Nandita’s dream is to __________ a living as a public relations consultant. 4 . Delegating tasks is an important skill to _________. 5 . Max is only 52, but he would like to __________ early retirement.
【单选题】若一次函数y=(2-m)x-2的函数值y随x的增大而减小,则m的取值范围是( )
【简答题】若一次函数y=(1-m)x+2,函数值y随x的增大而减小,则m的取值范围是______.
【简答题】若一次函数y=(2﹣m)x﹣2的函数值y随x的增大而减小,则m的取值范围是( ) A.m<0 B.m>0 C.m<2 D.m>2