题目

Hundreds of people lined up at Grand Central Terminal yesterday, but they weren’t there to catch a train. They came to New York City’s famous railroad station to trade in old dollar bills for the new George Washington Presidential $ 1 coin. The gold-colored coin is the first in a new series by the U.S. Mint（造币厂）that honors former U.S. Presidents. The Mint will issue four Presidential $ 1 coins a year through 2016. Like the popular 50 State Quarters(纪念币) program, which issues coins in the order in which each state joined the Union, Presidential $ 1 coins will come out in the已知一次函数y1=kx+m和二次函数y2=ax2+bx+c的图象如图所示，它们的两个交点的横坐标是1和4，那么能够使得y1＜y2的自变量x的取值范围是________．