B2 (16 points) ax2 Consider the function f () = bx - 8 , where a and b are constants. The graph of the function has an oblique asymptote (at too), whose equation is y = x + 2. Answer the following questions. Show and explain your work. (a) Find the values of the constants a and b. (b) Find the equation of the vertical asymptote of f(x). (c) Find the x- and y-coordinates of each local extreme point, and its type (i.e., maximum or minimum). (d) Does this function have an absolute maximum and/or absolute minimum? Explain