Mathematics for economics:

(1) Given the following system of linear equations, 2x - y + 2 C-y+2 = 3x - y - 02 = where a, be R are parameters. (a) Classify the system according to the values of a and b. 5 points (b) Solve the above system for the values a = -1, b = 4. 3 points (2) Consider the set A = {(r, y) ER? : 0