I'm confused about this question so some help would be appreciated.

"Suppose f is an even function and g is an odd function. Explain for any a>0, Integral (from -a to a) f =2 Integral (from 0 to a) f and Integral (from -a to a) g=0.

First make a sketch of such functions and look at net areas. Can you also explain these results with the Fundamental Theorem of Calculus?

(hint: if a function is even (or odd) then its derivative is odd (or even); and if a function is

odd then any anti-derivative is even and if a function is even then the anti-derivative that passes through the origin is odd (but not the other anti-derivatives!)).

I have no clue how to proceed with this question. I tried graphing even and odd functions. I graphed y=x^2 as well as y=x^4 and I noticed that the graphs had the same magnitude of area from the origin to a and -a, respectively. Odd functions, I used y=x^3 and x^5 and these graphs had the same area from -a to 0 and 0 to a but opposite sides of the x-axis. However, I can't seem to piece together what this means so any help would really help me out.