Determine the rational function of the form $$f(x)= \frac{a*x+b}{x+1}$$ that is continuous for all x, has an oblique asymptote with slope 2, and satisfies $$f(0)=-1$$. Which equation below is correct?

Given: f(0) = -1 (from b/(1) = -1) and an oblique asymptote with slope 2 for functions of the form f(x)= (a*x+b)/(x+1).