問題詳情
29. 若－3＜x＜2，且－6＜y＜5，則 2x＋3y 的範圍為下列何者？
(A)－19＜2x＋3y＜24
(B)－24＜2x＋3y＜19
(C) －14＜2x＋3y＜9
(D) －9＜2x＋3y＜7。
(A)－19＜2x＋3y＜24
(B)－24＜2x＋3y＜19
(C) －14＜2x＋3y＜9
(D) －9＜2x＋3y＜7。
參考答案
無參考答案
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