Mathematics
Senior High
オレンジの答え方ではダメなのですか？
138(1)
138
112 = -92
y=
-(x²=2x+1
y=-(x-11²-2,
2
✓ 138 次の放物線をx軸方向に 1, y 軸方向に2だけ平行移動して得られる放物線
の方程式を求めよ。
*(1) y=-x2
(2) y=2x2+4x
EST
*(3) y=3x²+x-4
(1) 求める放物線の方程式は
y-(-2)=-(x-1)2
すなわち
y=-x2+2x-3
121
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