初三经典试题之利用二次函数的性质解决车辆过隧道问题

智知源教育 2019-01-01
09:01:41
例题:http://p3.pstatp.com/large/pgc-image/8b7dc9b35f8443e385820f172c108a38
http://p99.pstatp.com/large/pgc-image/f54bc11a700949ec92bbcf024b709123
解:
http://p9.pstatp.com/large/pgc-image/be3b5a847f704d74b9aa9714a9696761
http://p3.pstatp.com/large/pgc-image/49933108c80f41a69d96414c59ba55c8
解析:
http://p3.pstatp.com/large/pgc-image/4067bc0e81224ab3988802be7254f3cd