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Mathematics Senior High

場合分けで、この方法ではダメですか?

35 第2章 2 次関数 重要例題6 定義域に文字を含む2次関数の最大·最小(1) xの2次関数 y=x°-4x+5 の0Sx^2a(a20) における最大値は 0Sas ア のとき イ], ア<aのとき ウ a-[エ atL 4 である。 2 POINT! 2次関数の最大·最小→グラフをかく。 CDMIOS 2 次 最大·最小の候補は 頂点と区間の端。 文字がある場合,軸と定義域の位置関係で場合分け。 (→ 5) (軸が定義域の中央にあるか, 中央より右にあるか, 中央より左にあるか) (→ 基10) 関 数 解答 y=x°-4x+5=(x-2)°+1 よって,軸は直線x=2 である。 定義域0SxS2a の中央は a [1] 0Saミア2のとき グラフは右のようになるから, x=0のとき最大となり, 最大値は 0-4-0+5=イ15 [2] 2<aのとき グラフは右のようになるから, x=2a のとき最大となり, 最大値は 年. (2a)-4-2a+5=ウ4a°-I8a+オ5 グラフをかく。 CHART まず平方完成 →基8 +(a-31>0 最大 のとき 2くx ;|一軸が定義域の中央,または 中央より右にある。 as2かつa20 =0 x=2a →0Sas2 き②の解は a=2のときは, x=0, 4 で 最大値5をとる。 全軸が定義域の中央より左 にある。 x=a x=2 <x 最大 あち x=0 x=2a を利用 x=2 x=a ト>p>0 参考 0Sx<2aにおける最小値は, 次のようになる。 [1] 2a<2すなわち0<a<1のとき x=2a で最小となり, 最小値は 4a°-8a+5 [2] 2a22すなわちaz1のとき x=2 で最小となり, 最小値は 1 最小 a 最小 x=0 ix=2a =2 x=0 x=2a 練習6 xの2次関数 y=-x°+8x+10 のa£x£a+3における最大値を M, 最小値 をmとする。 ア 一<as■イ]である。また, a<_アのと (1) M=26 となるaの値の範囲は き,M=-a°+ウ a+[エオ」である。 カ のときで、このとき キ 2) =qとx=a+3のときのyの値が一致するのはa=

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English Senior High

回答教えてください

The Mission of the Olympics Exercises lood wod onod Iatooe T0OY 9moont uoY otil gGb g mou Fill in the blanks with the proper words. A nbrslno e'no 9p Tuov 1. My lunch consists ( ) salad, soup and sandwiches. xie od veamoY ) helping people suffering from hunger. ) the bad weather. 2. He dedicated himself ( 18c6 e T9ve 3. The game was canceled due ( 4. The climbers finally made ( to the top of the mountain. P Taunon ont) to of Taob 5. The people praised her ( ) her courageous action. T9 amgbun etw bre nenogar B Change the verb in the parentheses into its proper form. 1. I(watch) the TV show three times ifI watch it again. do 2. Tom is proud of ( pass) the difficult test last year. 3. I thanked him for ( do) so much for me. bhim orolad 9 4. I'm ashamed of ( act) like a child last night. olgpeg to 7od an yoAma J9g of basi blgoat tunme asd worla esibuaa C Arrange the words in the proper order. DY TomedTolbenm soat minnd 1. The concert ( by / finished / have /will) 8:00 6ottシovotqnl 9aronoxe 2. Mike(five / have / moved / times / will ) if he moves again. low 3. By the time her plane arrives at the airport, I (for / for / have / her / hours / three / waited / will ). 4. The child finally ( admitted / broken / having / the dish ). 5. They (at / depressed / having / the game / lost / were) yesterday. Complete the following English sentences to match the Japanese. 1. 父は明日で30日間休みなしで働くことになるだろう。 My father without a break tomorrow. 2. 彼女はオリンピックで金メダルを獲得したことを誇りに思っています。 od Tbal elo Ncbnela rab She at the Olympic Games. em hgd.ueup Tekml ola Tnemi let-nem 39

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English Junior High

あっているか見てくれませんか…🙇🏻‍♀️💦

次の質問に、自分の考えと理由や一言コメントをつけて20語以上の英語で書きなさい。 1 Which do you like better, summer or winter? Why? Ilike winter berrer than sudy harda Summor. must But hot that 2 Which do you like better, playing outside or playing inside? Why? Summer So I Can't udeing Concentrate I(ike plaving in side Lerter thon dlain atsder because I cke veley bal and ladminton. These olo dayina inside. 3 Which do you like better, playing sports or watching sports? I lHhe plaging sports better thon weatching sporis Intae sting. I _en loying sourts Watdhing outa isnt. Want TO 4 How long have you lived in Morioka? I hare lired Monioka tor nine in yons I have lived heve ed. Since Years 5 What city do you want to visit? Why? Kroto. I Nant Eyomizu-dera isit to fe to want fo Jood feod What are you going to do in this summervacation? And I ike _Calture エ and want to eat I dd frieads I hovedt meet theu Gince IWant to meet hy I them I to talk for a long time. I was twelve Jf meet mant 7 What time do you usually go to bed? I USuly bed eleren o'clock. But. Pavents to at Yn shauld Co to bed enily ft I bave _1naiy many bowemaks. ave say 8 Which do you like better, reading books or playing video games? Why? I ite rending baoks beriny thon plavina video I can get beok Aude enadling becks Ie Jntars ties heed 20p2 Ivay thigs when I e.

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English Senior High

なんで1800円抜いてるのでしょうか?

B You visited your high school website and found information about_a walking tour in Kyoto. High School Website The English club is hosting a walking tour in Kyoto for the students and teachers who are visiting from our sister school in Sydney, Australia. We 5 are inviting the students of this school to join us, and any parents who want to volunteer to be guides are welcome, too. We have rented drop us off close to Kinkakuji and pick us up close to Ninnaji Temple. bus that will The leaves are beginning to turn color, so Kyoto will be especially beautiful. But it may also be very crowded with tourists. Hopefully, there will be fewer people at the second and third World Heritage Sites. 10 Walking Tour Schedule 7:30 a.m. The bus leaves from the school parking lot. 9:00 a.m. Enter the grounds of Kinkakuji. へ00 00 (World Heritage Site, Admission: 400 yen) 15 11:00 a.m. Enter the grounds of Ryoanji Temple as a group. (World Heritage Site, Admission 500 yeny 200 12:30 p.m. Eat lunch at Shojin Ryori Restaurant. (The standard course meal: /1,800 yen) 2:00 p.m. Enter the grounds of Ninnaji Temple as a group. (World Heritage Site, Admission: 500 yeny 20 3:30 p.m. The chartered bus will take everyone back to the school parking lot. ●Students may choose not to ride buses between the temples, especially if the weather is good, but the adults should keep in mind that it takes about an hour to walk around each place, we will be visiting/ It might be 25 a good idea for them to spend some time relaxing at cafés or tea shops and then ride buses instead of walking. To register to join the tour, click here. To join the lunch at Shojin Ryori Restaurant, click here. 1-6

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