Question

If f(x) = (x + 9)?, which statement about f(x) is true?

f(x) is an even function for all values of m.
f(x) is an even function for all even values of m.
f(x) is an odd function for all values of m.
f(x) is an odd function for all odd values of m.

Answer 1

I think the Answer is "f(x) is an even function for all even values of m."

Explanation: