Grade

Type of questions

English Junior High

☆のところが分かりません。 教えて欲しいです また、間違いがありましたらそちらもご指摘お願いします

標準問題 1 〈場所・方法を表す前置詞> 次の英文の空所に,[ □(1) We had lunch at (2) The book Oh a restaurant the desk is mine. ]内から適語を選んで書きなさい。(1回ずつ使用) in 3) I walk for to school with my brother every day. We took the train from Kobe to Hakata. Kamakura. (5) The post office is between the hospital and the library. ☐ (6) Nancy stood among the children. (7) Our bus leaves here for (8) The sun is shining above (9) The man came into Tokyo at 10:45. the mountain. this room through the window. [in/for/into/ above /on/from/at/through among/to/between ] 2 〈時を表す前置詞> 次の英文の空所に, [ (1) Mr. Brown came to Japan (2) We enjoy skiing in (3) You must finish the work (4) He waited for his friend (5) I got up at (6) We have no school ]内から適語を選んで書きなさい。 (2回使ってもよい) the second of July winter. next Friday. five o'clock. oh at seven this morning. until (7) I have known her since ✰ ☐ (8) My sister has been sick Saturday and Sunday. ten years. [ at/by/for/in/on/since until ] this morning. 3 <その他の前置詞> 次の文の( )内から適語を選び, 記号を○で囲みなさい。 (1) I am going to make a cake (7 from 1 about for Taro. (2) They went to Sapporo (7 on (3) She cut the meat (7) with 1 (4) Wine is made (7 into 1 of by by with) plane. in) a knife. from) grapes. from) paper. of I by) butter. with in) French. at) our plan? with) two thousand yen. with) you. (5) The bag is made (7 into 1 of (6) Milk is made (7 into 1 from (7) This book is written (by (8) What do you think (about 1 for (9) I bought this cap (by) 1 for ☑☐ (10) Take some money (about 1 to (11) My mother is younger than my father (12) We were surprised (7 with 1 in X(13) The basket was filled (7 of ✗☐ (14) Don't speak (7 with 1 in in (7 for by in) two years. at the picture. from ) apples. 1 with at I on) your mouth full. 2005.

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Mathematics Senior High

この⑵のの問題なんですが、どうしたら➖➖➕のグラフだと分かるのでしょうか??

(2) y=x-4x+1 CHART 次の類の補給を果 03-16x+18+5 SOLUTION 4次変数の 値とグラフ やブラフと同じ で進める。 となるのを求める 化を調べ、増減表を作る (1) y'-12x-48x+36x -12x(x-4x+3) =12x(x-1)(x-3) 10 とすると x = 0, 1,3 5 3 の増減表は次のようになる。 O 1 X **4 0 *** 1 3 20 + 0 0 + -22 極小 極大 極小 J' 7 5 10 -22 A のグラブ 1 CHART & プロが操り )がさ ただし、(1) らない(必要 MO f(x)=3x² f(x)はx= よって 逆に、この f(x)=0 /(x)の増 よって, yはx=0で極小値 5, x=1で極大値 10, x=3 で極小値 -22 をとる。 また、グラフは図のようになる。 y'=0 とすると (2) y'=4x-12x2=4x2(x-3) x=0,3 yの増減表は次のようになる。 x *** 0 *** 3 0 + 0 |1 3 x 2か所で極小となる z=y=4x²(x-3) フ D ZA 極小 y 1 -26 T よって, yはx=3 で極小値-26 をとる。極大値はない。 また,グラフは図のようになる。16 よって, f x=-1で また、① 条件より、 したがって よって 以上から En (2) の関数はx=0 において y'=0を満たすが、その前後でyの符号が変わらな すなわち, x=0のときの値は極値ではなく、この関数は極小値のみをもつ。 関数では,(2)のように極大値と極小値の一方のみをもつ場合がある。 RACTICE 1910 POINT

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