1. Let =(x) = 3x-1 (K+72 ' m(x) = x - (K + 5) and n(x) = 2 . Answer the following: a. State whether z(x), m(x) and n(x) are polynomials or not. Justify your answer. (5 marks) b. Find the domain of the functions z(x), m(x) and n(x) (10 marks) c. Find (zom) (x) in the simplest form. marks) d. Find (m * n") (x). (13 marks) e. Show if m(x) is one to one function. (6 marks) 2. For the quadratic function y = -6x3 + (K + 4)x + 9, find the following: a. The Axis of Symmetry of the quadratic equation. (4 marks) b. The Vertex point. (3 marks) C. The y-intercept point. (2 marks) d. The x-intercept points. (13 marks) e. Draw the function y (show all above elements in the graph). (5 marks) 3. Find the solution of the following system of liner inequalities by graphing: (K + 2y > 5x + 3y (4y 2 (K + 1)x + 2 (20 marks) 4. Draw the graph of the linear equation: 3x + 4y - 7z =K + 8. (12 marks)