2. a. Write an equation of the form y = a(x - h) + k with vertex (2, 10) that models the flight path for the toy rocket, assuming the rocket leaves the ground at (0, 0). (5 marks) Hint: to find the value of a, use the coordinates of a point where rocket leaves the groung and your knowledge of h and k values of the vertex form. b. What are the domain and range of the function? What do they represent in this situation? (3 marks)