Question

（6分）受国际原油价格持续上涨影响，某市对出租车的收费标准进行调整．

 

（1）调整前出租车的起步价为  ▲  元，超过3km收费  ▲  元/km；

（2）求调整后的车费y（元）与行驶路程x（km）（x>3）之间的函数关系式，并在图中画出其函数图象．

 

Answer 1

解：（1）9；2.5；····················································································· 2分

（2）y=10+2.5（x－3）=2.5x+2.5································································· 5分

·········································································································· 6分

解析:略