What are the mathematical answers to these two multiple-choice questions for the students in three schools?
C: The symmetry axis is 1/2. It's easier to bring the answer in, or get the number with a small dot.
The value of a:Y must be less than x, so exclude c, because there is no judgment condition of x, so both positive and negative should have values, and exclude b, because | x | & gt=0, so y & gt=0, excluding d.