What is the end behavior of f(x)?
f(x)=-3072+2432x+128x^4-576x^3+256x^2-8x^5
1. as x→−∞,y→∞ and as x→∞,y→−∞
2. as x→−∞,y→∞ and as x→∞,y→∞
3. as x→−∞,y→−∞ and as x→∞,y→∞
4. as x→−∞,y→−∞ and as x→∞,y→−∞