鞋子的“鞋码”和鞋长（cm）存在一种换算关系，下表是几组“鞋码”与鞋长换算的对应数值：［注：“鞋码”是表示鞋子大小的一种号码］

（1）设鞋长为x，“鞋码”为y，试判断点（x，y）在你学过的哪种函数的图象上？
（2）求x、y之间的函数关系式；

（3）如果某人穿44号“鞋码”的鞋，那么他的鞋长是多少？

列车上出售的食品常常放在如图所示的小推车上，若货物均匀摆在车内，当前轮遇到障碍物时，售货员向下按扶把，这时手推车可以视为杠杆，支点是 ____（写出支点位置的字母），当后轮遇到障碍物A时，售货员向上提扶把，这时支点是　 ____　（写出支点位置的字母），这种情况下，手推车可以视为 ____杠杆．

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根据拼音写汉字：
  jǔ  jué        liàng  qiàng       péng  pài          guàn
（         ） （               ） （             ）     （        ）输

Dear Mum and Dad,

    How are you? I'm happy 1 America. It's cool here. What is the 2 like in London? Uncle Bob and Aunt Jenny are nice to 3. This is Uncle Bob and Aunt Jenny's  4, Toby. He is thirteen years old. We are good friends now. We 5 basketball every day. Tomorrow 6 Saturday. Uncle Bob and Aunt Jenny want to take Toby and me to the Haines Shoe House. It is a 7. It is 67 years old. Here is a 8 of it. There are two bedrooms, one kitchen 9 one living room. There is an ice cream shop in it too. I love ice cream! Are there 10 computers or TVs in the hotel? I will find it out (查明) tomorrow.