2 Even-numbered functions (1) satisfy that the domain of the function is symmetric about the origin. (2) Functions that satisfy the relation f(-x)=f(x) are even-numbered functions.
Whether the function of 3 increases at (0, positive infinity) mainly depends on whether f(x) is an even function when X 1 < X2 and F (X 1) < F (X2).
The even function in your answer is y=e lxl power.