1 |
x |
A.y2<y1<0 | B.y1<y2<0 | C.y2>y1>0 | D.y1>y2>0 |
1 |
x |
1 |
x |
1 |
2 |
1 |
2 |
6 |
x |
A.
| B.3 | C.±
| D.±3 |
k |
x |
3 |
x |
A.(1,3) | B.(-1,-3) | C.(3,-1) | D.(-3,-1) |
A.(0,0) | B.(-m,-n) | C.(m,-n) | D.(-m,n) |
-k2-1 |
x |
A.x1<x3<x2 | B.x3<x2<x1 | C.x1<x2<x3 | D.x3<x1<x2 |
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