prove if it's an even or odd function then graph

Even
Explanation
make:
[tex]\begin{gathered} f(x) \\ \text{and} \\ f(-x) \end{gathered}[/tex]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. If you end up with the exact opposite of what you started with (that is, if f (–x) = –f (x), so all of the signs are switched), then the function is odd, then
Step 1
[tex]f(x)=c\text{ ( a constant)}[/tex]and
[tex]f(-x)=c\text{ ( a constant)}[/tex]Hence
[tex]\begin{gathered} f(x)=f(-x) \\ \text{then the function is EVEN} \end{gathered}[/tex]Step 2
graph
I hope this helps you