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xに0、1、2、3…と代入すればそれぞれのyの値が出るので、それをプロットすればいいと思いますよ！
左半分は二次曲線の対称性を利用すれば、計算しなくて大丈夫です
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![二次関数のグラフの書き方と、頂点の求め方がわかりません。
[解答] (1)頂点 (0,1)... - 1](https://d16qcfao6gys7e.cloudfront.net/uploads/qa_question_image/file/27263/thumb_l_webp_AA49F74A-2C28-4382-BD40-34EEF7DAA38D.webp?Expires=1775031526&Signature=OgL3nX6010MTDQw~WxlmRYC8kNIbs8TLf70gUsYsiXzjstRkTuKiOZ6sZYw8rCAv7~hHVZCO5HmBds9dhEPVujfJt~cuGyHg9tSyAgmekcnHrQkBM0GrCSca7BwQIk7dKW2eUpd8H1eObScbOsMcmuDwC5V2OYGmY4C3eas-Af4nj~3yarNsKqOsrTs6gDvOplipCXB~R35WMF2oGtFG~9GVNPA6xbpT-GY~4hjBkFSRakbyLOeuHlMdrZ-gIQEORsRUI~Pucq~OdzCwhIOFHdiAiZSMRcemrvV-cMJHvvp8ggFNuusWCbR3DDn0jbID46eHDmsKS7zXxOvM~qeUcQ__&Key-Pair-Id=K2PR0GXBPZ19LT&Expires=1775031526&Signature=OUZK2XaiOmybysqVrfD6Ne7YxljCvikGH7eSv4Z~ODtwLxh2Y9gK-llAAs38Ox7rhc0qACILrGhqCLuupEykIcZInSEr7KX7eS0C5rSIv2~vEsCOMDaVZQKurxZMcTkOQNVMSbXVupHgX1msAuJvgI2Ignq64bjfMyOdNIXFIHPaxT5Gv0SFPEG4Vbefo8GVVvTeuCGrU9r-cXLMkTAqJ7mtMQTDsu4pSQGZtqbGVMlHPCJm0GTnLolvxFW01KXPB1bp8j5R1LUVQQAWDuQtBQBqwU1WNiTYNWQwW0bt9Ax03mAY4sAvEglkHdxHu2G3yN0L~Elr10fBc4aW9NXdGA__&Key-Pair-Id=K2PR0GXBPZ19LT)
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二次関数のグラフの書き方
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ありがとうございます