题目内容
(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.
(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.
解:(1)9;2.5;········································································· 2分
(2)y=10+2.5(x-3)="2.5x+2.5·································································" 5分
·········································································································· 6分
(2)y=10+2.5(x-3)="2.5x+2.5·································································" 5分
·········································································································· 6分
略
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