Forthe function z = A 12 + 3:2 A The last digit of your matrix number For example, a student with the matrix number CD190079 will have the values of A = 9. Use 1 if the last digit is of your matrix number is 0. (i) State the domain and the range for the function {2 marks) (ii) Sketch the contour plot of the function using three level curves {3 marks) (iii) Then, draw the surface of: nal part (ii) {3 marks)