What is the slant asymptote of f(x)=x2+3x+2x−1f(x) = \frac{x^2 + 3x + 2}{x - 1}f(x)=x−1x2+3x+2?
y=xy = xy=x
y=x+3y = x + 3y=x+3
y=2x+1y = 2x + 1y=2x+1
y=x+4y = x + 4y=x+4