Determine the horizontal asymptote of f(x)=5x4−2x+12x4+x3−7f(x) = \frac{5x^4 - 2x + 1}{2x^4 + x^3 - 7}f(x)=2x4+x3−75x4−2x+1.
y=0y = 0y=0
y=2.5y = 2.5y=2.5
y=5y = 5y=5
No horizontal asymptote