4x+m |
f(x) |
|
4x+m |
-4x+2 |
m |
4 |
1 |
2 |
m |
4 |
1 |
2 |
1 |
2 |
m |
4 |
m |
4 |
1 |
2 |
m |
4 |
1 |
2 |
m |
4 |
1 |
2 |
1 |
2 |
m |
4 |
m |
4 |
1 |
2 |
A.x>0 | B.x<0 | C.x<-3 | D.x≤-3 |
A.(3,+∞) | B.[2,+∞) | C.(-1,2) | D.(2,3) |
A.{x|0<x<2或-3<x<-1} | B.{x|-3≤x<0或x≥2} |
C.{x|0≤x<2或-3<x≤-1} | D.{x|-3<x≤0或x>2} |
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