A. Which of the following ordered pairs are functions? 1. A = {(6, 6), (4, 4), (2, 2), (0, 0), (-2,-2)} 2. B={(8,-4), (6, -2), (4, 0), (2, 2), (0,4)} 3. C= {(5, π), (3, π), (1, π), ...} D = {(1, 1), (1,3), (3, 1), (-1,3)} 5. E= {--- B. Determine the domain and range of each of the following relations. 6. y2 = x2 + 2x − 3 C. Find the function value of the following. 7. If F(x) = -2x² + 3x - 1, find F(5) and F(-1). D. Perform the following fundamental operations on each given functions. Then, determine its domain. a. (f+g)(x) b. (f. g)(x) b. (f-g)(x) d. 40 8. f(x) = 3x² + 1; g(x) = x - 3

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