本课配套习题挑战模式1/5
单选题
难度系数:
1.下列问题中,两个变量成正比例的是( )
A: 等腰三角形的面积一定,它的底边和底边上的高 |
B: 等边三角形的面积和它的边长 |
C: 长方形的一边长确定,它的周长与另一边长 |
D: 长方形的一边长确定,它的面积与另一边长 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5q2j5q+U5L6L5Ye95pWw5Y+K5Y+N5q+U5L6L5Ye95pWw55qE5a6a5LmJ5a+55ZCE6YCJ6aG56L+b6KGM6YCQ5LiA5YiG5p6Q5Y2z5Y+v77yO
- 答案:RA==
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
本课配套习题挑战模式2/5
单选题
难度系数:
2.已知正比例函数y=kx+b的值随着x的增大而减小,则大致图象为( )
A: ![]() |
B: ![]() |
C: ![]() |
D: ![]() |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5q2j5q+U5L6L5Ye95pWw5Zu+6LGh55qE5oCn6LSo5Y+v55+l77yO
- 答案:RA==
6Kej77ya4oi15piv5q2j5q+U5L6L5Ye95pWw77yMPGJyPuKItGI9MO+8jDxicj7iiLTlm77osaHlv4Xnu4/ov4fljp/ngrnvvIw8YnI+4oi15Ye95pWw5YC86ZqP552AeOeahOWinuWkp+iAjOWHj+Wwj++8jDxicj7iiLTlh73mlbDlm77osaHnu4/ov4fnrKzkuozlm5vosaHpmZDvvI48YnI+5pWF6YCJRO+8jg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知函数
是正比例函数,且图象在第二、四象限内,则m的值是( )

A: 2 |
B: -2 |
C: ±2 |
D: ![]() |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5q2j5q+U5L6L5Ye95pWw55qE5a6a5LmJ5b6X5Ye6bTxzdXA+Mjwvc3VwPi0zPTHvvIxtKzHvvJww77yM6L+b6ICM5b6X5Ye65Y2z5Y+v77yO
- 答案:Qg==
6Kej77ya4oi15Ye95pWwPGltZyB3aWR0aD0xMDAgaGVpZ2h0PTI2IHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMzcvRTgvckJBQ0ZGV2JpTHpqUXNET0FBQUMza3hXR1g0NTM5LnBuZyI+5piv5q2j5q+U5L6L5Ye95pWw77yM5LiU5Zu+6LGh5Zyo56ys5LqM44CB5Zub6LGh6ZmQ5YaF77yMPGJyPuKItG08c3VwPjI8L3N1cD4tMz0x77yMbSsx77ycMO+8jDxicj7op6PlvpfvvJptPcKxMu+8jDxicj7liJlt55qE5YC85pivLTLvvI48YnI+5pWF6YCJ77yaQu+8jg==
本课配套习题挑战模式4/5
单选题
难度系数:
4.若y关于x的函数y=(m-2)x+n是正比例函数,则m,n应满足的条件是( )
A: m≠2且n=0 |
B: m=2且n=0 |
C: m≠2 |
D: n=0 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5q2j5q+U5L6L5Ye95pWw55qE5a6a5LmJ5YiX5Ye677yabS0y4omgMO+8jG49MO+8juaNruatpOWPr+S7peaxguW+l23vvIxu5bqU5ruh6Laz55qE5p2h5Lu277yO
- 答案:QQ==
6Kej77ya4oi1eeWFs+S6jnjnmoTlh73mlbB5Pe+8iG0tMu+8iXgrbuaYr+ato+avlOS+i+WHveaVsO+8jDxicj7iiLRtLTLiiaAw77yMbj0w77yOPGJyPuino+W+lyBt4omgMu+8jG49MO+8jjxicj7mlYXpgInvvJpB77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.如图,三个正比例函数的图象对应的解析式为①y=ax,②y=bx,③y=cx,则a、b、c的大小关系是( )

A: a>b>c |
B: c>b>a |
C: b>a>c |
D: b>c>a |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5omA5Zyo6LGh6ZmQ5Yik5pat5Ye6YeOAgWLjgIFj55qE56ym5Y+377yM5YaN5qC55o2u55u057q/6LaK6Zmh77yM5YiZfGt86LaK5aSn5Y+v5b6X562U5qGI77yO
- 答案:Qg==
6Kej77ya4oi1eT1heO+8jHk9YnjvvIx5PWN455qE5Zu+6LGh6YO95Zyo56ys5LiA5LiJ6LGh6ZmQ77yMPGJyPuKItGHvvJ4w77yMYu+8njDvvIxj77yeMO+8jDxicj7iiLXnm7Tnur/otorpmaHvvIzliJl8a3zotorlpKfvvIw8YnI+4oi0Y++8nmLvvJ5h77yMPGJyPuaVhemAie+8mkLvvI4=