挑战习题
1
/5
单选题
难度:
1.若函数y=
的图象在每一象限内y的值随x值的增大而增大,则m的取值范围是( )
A
m>3
B
m>-3
C
m<-3
D
m<3
提示1:
5YWI5qC55o2u5Y+N5q+U5L6L5Ye95pWw55qE5oCn6LSo5b6X5Ye65YWz5LqObeeahOS4jeetieW8j++8jOaxguWHum3nmoTlj5blgLzojIPlm7TljbPlj6/vvI4=
正确答案:
Qw==
6Kej77ya4oi15Ye95pWweT08aW1nIHdpZHRoPTI2IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0IwLzcyL3JCQUNFMVZpblM3RDllTmJBQUFCdEFIQVg1ODczMi5wbmciPueahOWbvuixoeWcqOavj+S4gOixoemZkOWGhXnnmoTlgLzpmo945YC855qE5aKe5aSn6ICM5aKe5aSn77yMPGJyPuKItG0rM++8nDDvvIzop6Plvpdt77ycLTPvvI48YnI+5pWF6YCJQ++8jg==
2
/5
单选题
难度:
2.反比例函数y=
(k≠0)的图象经过点(-1,-2),当自变量x>1时,函数值y的取值范围是( )
A
y>1
B
y<1
C
y>2
D
0<y<2
提示1:
6aaW5YWI5Yip55So5bey55+l54K55rGC5b6X5Y+N5q+U5L6L5Ye95pWw55qE6Kej5p6Q5byP77yM
提示2:
54S25ZCO5qC55o2u5YW25q+U5L6L57O75pWw55qE56ym5Y+356Gu5a6a5aKe5YeP5oCn77yM5LuO6ICM56Gu5a6a562U5qGI77yO
正确答案:
RA==
6Kej77ya4oi15Y+N5q+U5L6L5Ye95pWweT08aW1nIHdpZHRoPTcgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvQjAvNzMvckJBQ0UxVmluVFREZ21UWEFBQUJXVm40N1EwNjI3LnBuZyI+77yIa+KJoDDvvInnmoTlm77osaHnu4/ov4fngrnvvIgtMe+8jC0y77yJ77yMPGJyPuKItGs9LTHDl++8iC0y77yJPTLvvIw8YnI+4oi05Zyo5q+P5LiA6LGh6ZmQ77yMeemaj+edgHjnmoTlop7lpKfogIzlh4/lsI/vvIw8YnI+4oi05b2TeD0x5pe277yMeT0y77yMPGJyPuKItOW9k3jvvJ4x5pe277yMMO+8nHnvvJwy77yMPGJyPuaVhemAiUTvvI4=
3
/5
单选题
难度:
3.已知点A(-3,y
1
),B(-2,y
2
),C(3,y
3
)都在反比例函数y=
的图象上,则( )
A
y
1
<y
2
<y
3
B
y
3
<y
2
<y
1
C
y
3
<y
1
<y
2
D
y
2
<y
1
<y
3
提示1:
5YiG5Yir5oqK5ZCE54K55Luj5YWl5Y+N5q+U5L6L5Ye95pWweT08aW1nIHdpZHRoPTcgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvN0EvRDUvckJBQ0psVmluVGloTGl1M0FBQUJVWVlIaFpNNDA4LnBuZyI+5rGC5Ye6eTxzdWI+MTwvc3ViPuOAgXk8c3ViPjI8L3N1Yj7jgIHvvIx5PHN1Yj4zPC9zdWI+55qE5YC877yM5YaN5q+U6L6D5Ye65YW25aSn5bCP5Y2z5Y+v77yO
正确答案:
RA==
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
4
/5
单选题
难度:
4.如图是三个反比例函数y
1
=
,y
2
=
,y
3
=y
2
=
在x轴上方的图象,由此得到( )
A
k
1
>k
2
>k
3
B
k
2
>k
1
>k
3
C
k
3
>k
2
>k
1
D
k
3
>k
1
>k
2
提示1:
6aaW5YWI5qC55o2u5Zu+6LGh5omA5aSE55qE6LGh6ZmQ5Yik5a6aazxzdWI+Mzwvc3ViPu+8njDvvIxrPHN1Yj4xPC9zdWI+77ycMO+8jGs8c3ViPjI8L3N1Yj7vvJww
提示2:
54S25ZCO5qC55o2u5Zu+6LGh5b6X5Yiw5b2TeD0tMeaXtu+8jHk8c3ViPjE8L3N1Yj7vvJ55PHN1Yj4yPC9zdWI+77yM5LuO6ICM5b6X5Yiw5q2j56Gu55qE6YCJ6aG577yO
正确答案:
Qw==
6Kej77ya4oi1eTxzdWI+Mzwvc3ViPuS9jeS6juesrOS4gOixoemZkO+8jHk8c3ViPjE8L3N1Yj7lkox5PHN1Yj4yPC9zdWI+5L2N5LqO56ys5LqM6LGh6ZmQ77yMPGJyPuKItGs8c3ViPjM8L3N1Yj7vvJ4w77yMazxzdWI+MTwvc3ViPu+8nDDvvIxrPHN1Yj4yPC9zdWI+77ycMO+8jDxicj7iiLXlvZN4PS0x5pe277yMeTxzdWI+MTwvc3ViPu+8nnk8c3ViPjI8L3N1Yj7vvIw8YnI+4oi0azxzdWI+Mjwvc3ViPu+8nms8c3ViPjE8L3N1Yj7vvIw8YnI+4oi0azxzdWI+Mzwvc3ViPu+8nms8c3ViPjI8L3N1Yj7vvJ5rPHN1Yj4xPC9zdWI+77yMPGJyPuaVhemAiUPvvI4=
5
/5
单选题
难度:
5.如果一个点的横、纵坐标均为整数,那么我们称这个点是格点,如图,A、B两点在函数y=
(x>0)的图象上,则图中阴影部分(不包括边界)所含格点的个数为( )
A
1
B
2
C
3
D
4
提示1:
5YWI5Yip55So5b6F5a6a57O75pWw5rOV5rGC5b6X5Y+N5q+U5L6L5Ye95pWw55qE6Kej5p6Q5byP5Li6eT08aW1nIHdpZHRoPTcgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMTAvNTkvckJBQ0ZGVmluVHV4V0JxREFBQUJXR1dSbVhJMzAxLnBuZyI+
提示2:
55u057q/QULnmoTop6PmnpDlvI/kuLp5PS14Kzc=
提示3:
54S25ZCO5YiG5Yir5oqKeD0y44CBM+OAgTTjgIE15Luj5YWl5Lik5Liq6Kej5p6Q5byP77yM5YiG5Yir5rGC5Ye65a+55bqU55qE57q15Z2Q5qCH
提示4:
5YaN5b6X5Yiw5Zu+5Lit6Zi05b2x6YOo5YiG77yI5LiN5YyF5ous6L6555WM77yJ5omA5ZCr5qC854K555qE5Z2Q5qCH77yO
正确答案:
Qw==
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