- ________ is it today?
- It is Tuesday.
—We
已知函数f(x)的图象关于直线x=2对称,且在区间(﹣∞,0)上,当x=﹣1时,f(x)有最小值3,则在区间(4,+∞)上,当x=____时,f(x)有最____值为____.
正比例函数y=x的大致图象是( )