| ||
5x |
A.x≠0 | B.x≤2且x≠0 | C.x≥-2且x≠0 | D.x≥-2 |
|
x+5 |
A.x≠5 | B.x≥-5 | C.x>-5 | D.x≤-5 |
x+2 |
1 |
x-2 |
A.x≥-2 | B.x>-2且x≠2 | C.x≥0且≠2 | D.x≥-2且x≠2 |
A.y=1.5(x+12)(0≤x≤10) | B.y=1.5x+12(0≤x≤10) |
C.y=1.5x+12(x≥0) | D.y=1.5(x-12)(0≤x≤10) |
x+2 |
A.x>-2 | B.x≥-2 | C.x≠2 | D.x≤-2 |
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