Consider the following function.

f(x) = 7x^6 + 9x^4-x^2

(a) Find the zeros of the function. (Round your answers to four decimal places. Enter your answers as a comma-separated list.)

(b) Use a graphing utility to graph the function. Approximate the open intervals on which the function is increasing, decreasing, or constant. (Round your answers to answers using interval notation. If an answer does not exist, enter DNE.)

increasing

decreasing

constant

Odd

even


(c) Determine whether the function is even, odd, or neither.