連立不等式を同時に満たす(x,y) の集合を，グラフで確かめましょう．
2つの不等式の領域が重なる部分が，解の領域です．
- Resource Type
-
Activity
- Tags
-
- Target Group (Age)
- 15 – 19+
- Language
- Japanese / 日本語
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