How do you determine if a function is even, odd, or neither

You may be asked to "determine algebraically" whether a function is even or odd. To do this, you take the function and plug –x in for x, and then simplify. If you end up with the exact same function that you started with (that is, if f (–x) = f (x), so all of the signs are the same), then the function is even.

Step-by-step explanation:

First picture:

c = 90, alternate interior angles

5. c = 65, alternate interior angles

Second picture:

c = 100, alternate interior angles

7. x = 49, corresponding angles

y = 49, alternate interior angles