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Mathematics Junior High

問2が合っているか見て欲しいです 特に問2の2が不安なので、間違っていたら、解説をつけてくれるとありがたいです、、、 ご回答よろしくお願いします!

あやのさんたちは、右の。 5 沸かすことにしました。 水を熱し始めてからx分後の水温を y℃ とすると, 5分後まで 水温の変化は下の表のようになりました。 x(57) 0 1 2 3 4 5 y(°C) 12.0 17.2 23.7 29.3 34.0 39.6 11717.3 5.2 水温が80℃になるのは、およそ何分後と予想できるでしょうか。 表やグラフを使って,x と yがどんな関係にあるか考えてみよう。 y (°C) 40 30 20 20 10 175~8 お湯でい とおい 「仕上がり 問1 上のQについて,まいさんは みんなに次のように考えました。 説明しよう 上の表のx,yの値の組に 対応する点を左の図にとる と,yはxの1次関数と みなせそうだね。 EXC 0 1 2 3 4 5 (分) このように考えた理由を 説明しなさい。 問1のように,実験や観測で得られた値から, 2つの数量の関係を 1次関数とみなすことができる場合がある。 問2 上のQについて, 次の問いに答えなさい。 (1) 左上の図に, 2点 (0, 12), (4,34) を通る直線を かき入れなさい。 (2)(1)の直線の式を求めなさい。 また, (1) の直線の切片と傾きは, それぞれどんな数量を表していますか。 (3)水温が80℃になるのは,およそ何分後と予想できる でしょうか。

Resolved Answers: 1
English Junior High

いの答えと考え方を教えてください。

5 10 15 20 25 30 The Olympics were held in Tokyo in 1964. A few years ago before the Olympics, Japan had a big problem. It was a problem of communication. Many foreign people didn't visit Japan, and we had only, Japanese signs. For example, words like "i" or "" were on toilet doors. These signs were not understood by many foreign people. Japanese people at that time needed to make signs in many different languages for foreign people. But when they put many words on one sign, the "letters became too small. They could not easily read the sign. They had to think of ) signs for foreign people. Mr. Masaru Katsumi, a leader of a design team for the Olympics, had a great idea. everyone /to/ was easy / thought / understand he forit pictures. He wanted to make picture signs. These signs are called *pictograms and are used in many places now. Picture 1 Picture 2 Picture 3 Look at these pictures. Picture 1 shows a shower. Picture 2, shows a toilet. Picture 3 shows a restaurant. Foreign people can easily understand what each picture shows. They had to make pictograms which everyone could understand without any trouble. When they started to make them, one of the pictograms was a shower. Many Japanese people didn't know about showers at that time and didn't have one at home. One of the designers didn't even know the word "shower." One officer had to explain how to use it with a photo of a shower. The designer made the pictograms through the officer's words. With a lot of trouble and hard work, twelve designers needed three months and made pictograms for the Olympics. When the last pictogram was finished, Mr. Katsumi said to all the designers, "You did a great job, but this work is not for us. We did it for all Japanese people. Please write your names on this paper." The paper said that they'd like to give up the *copyright to the pictograms. They wrote their names on the paper. They gave up the copyright. One of the designers said, "Mr. Katsumi hopes that many people in many places will use the pictograms in the future. Money from the copyright is not important to Mr. Katsumi. He is proud that he is one of the members who worked for the Tokyo Olympics." In 2020, we are going to have the Olympics in Tokyo. Our life will change a lot. What kinds of new signs or pictograms will we see around us? (E) letter pictogram ピクトグラム(絵文字) designer www. デザイナー officer 役人 copyright 著作権

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