Q9. The function f is defined by f (z) = 147 for & E R, x # 2. (a) Find the zero of f(). (b ) For the graph of y = f(x), write down the equation of ) the vertical asymptote; (b.ii) the horizontal asymptote. (c) Find f-1 (z), the inverse function of f (z). Q10. The graph of the quadratic function f(x) = c + bx - 23 intersects the r-axis at the point A(-1, 0) and has its vertex at the point B(3, 16). Write down the equation of the axis of symmetry for this graph. . Find the value of b. Q11 The quadratic equation (k - 1)x2 + 2x +(2k - 3)= 0, where k E R, has real distinct roots. Find the range of possible values for k