### Home > CCA2 > Chapter 2 > Lesson 2.2.5 > Problem2-163

2-163.

Write an equation for a function that is even. Then explain how you can tell it is even from its graph, its table, and its equation. Homework Help ✎

There are many possibilities.
Remember that the function needs to be symmetric across the y-axis and $f(−x)=f(x)$.