Mathematics
Senior High
これって展開しないとだめなんですか？
羽
点(-2-1, 1+2)
すなわち点(-3, 3)
ゆえに、放物線Cの方程式は
y=2(x+3)^+3=2x2+12x+21
▼平行移動して
数は変わら
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