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<課題1>

<課題1>.   長方形ABCDで,点PはAを出発して,辺上をB,Cを通ってDまで動く。   点PがAからx cm 動いたときの△ APD の面積をy cm 2 として,△ APD の面積の変化の様子を調べてみよう。. A. D. B. C. 点P が 1cm 動いたら. P. A. D. B. C. 点P が 2cm 動いたら. P. A. D. B. C. 点P が 3cm 動いたら. P. A. D. B. C. 点P が 4cm 動いたら. P. A. D. B. C. 点P が 5cm 動いたら. P. A. D.

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<課題1>

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  1. <課題1>   長方形ABCDで,点PはAを出発して,辺上をB,Cを通ってDまで動く。   点PがAからxcm動いたときの△APDの面積をycm2として,△APDの面積の変化の様子を調べてみよう。

  2. D B C 点Pが1cm動いたら P

  3. D B C 点Pが2cm動いたら P

  4. D B C 点Pが3cm動いたら P

  5. D B C 点Pが4cm動いたら P

  6. D B C 点Pが5cm動いたら P

  7. D B C 点Pが6cm動いたら P

  8. D B C 点Pが7cm動いたら P

  9. D B C 点Pが8cm動いたら P

  10. D B C 点Pが9cm動いたら P

  11. D B C 点Pが10cm動いたら P

  12. 0 1 2 3 4 5 6 7 8 9 10 y 0 2 4 6 6 6 6 6 4 2 10 対応表

  13. y=-2x+?

  14. 20 15 10 5 0 3 7 10 y=2x y(cm2) y=-2x+20 y=6 x(cm)

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