Determine if the given functions are even, odd or neither. f(x) = -2x^2 - 7 and g(x) = 2x^2 + 3 a) odd, odd b) even, odd c) odd, even d) even, even

Choice D
Both functions are even



If you graph both f(x) and g(x), you'll see that there is symmetry along the vertical y axis. This is visual proof that the functions are even. For algebraic proof, note how all the exponents are even. For the constant terms, there is a hidden x^0 term so the exponent is even there as well. 

There is no question, there is just the answer.