x |
4 |
a |
2 |
x |
A.-
| B.
| C.5 | D.±
|
20-x |
4 |
a |
2 |
x |
x |
x |
2 |
| ||
2 |
5 |
5 |
5 |
A.(4,0) | B.(4,1) | C.(3,1) | D.(3,2) |
A.2005 | B.2 | C.1 | D.0 |
1 |
2 |
1 |
4 |
A.y=x2-2x+4 | B.y=x+
| ||||||||
C.y=
| D.y=x+
|
A.f(4.5)<f(6.5)<f(7) | B.f(4.5)<f(7)<f(6.5) |
C.f(7)<f(4.5)<f(6.5) | D.f(7)<f(6.5)<f(4.5) |
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