prep 1 55

Kath1985

55.    6892-!-item-!-187;#058&005291
Which of thefollowing inequalities has a solution set that, when graphed on the numberline, is a single linesegment of finite length?

(A)  X⁴≧ 1
(B)  X³≦ 27
(C)  X²≧ 16
(D)  2≦ |X| ≦ 5
(E)  2≦ 3X + 4 ≦ 6
答案E
請問黃色畫線部分是什麼意思 為什麼是E呢?

windie

有一个有限的范围、大概就是这意思