x+3 |
2-x |
x+3 |
2-x |
(x+2)+3 |
2-(x+2) |
x+5 |
-x |
x+5 |
-x |
x+5 |
-x |
5 |
-x |
x+3 |
2-x |
2y-3 |
1+y |
2x-3 |
1+x |
A.y=|x+2| | B.y=|x| | C.y=|x|+2 | D.y=|x|-2 |
A.y=2(x+1)2+3 | B.y=2(x-1)2+3 | C.y=2(x-1)2-3 | D.y=2(x+1)2-3 |
A.y=0对称 | B.x=0对称 | C.y=1对称 | D.x=1对称 |
A. | B. | C. | D. |
-x+2 |
x-1 |
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