Problem 6. (1 point) Use the contour diagram of f to decide if the specified directional derivative is positive, negative, or approximately zero. 1. At the point ( -1, 1) in the direction of (- 7 - 3)/ V2, 2.4 12.0 12.0 O'OT 10.0 2. At the point (1, 0) in the direction of - 7, 0'9 0.8 3. At the point (-2, 2) in the direction of 7, O L 4. At the point (0, 2) in the direction of 3, 0.8 C. 5. At the point (0, -2) in the direction of (i - 27) / V5, 8.0 6. At the point ( -1, 1) in the direction of (- 7 + 3) / V2, 2.4 10.0 12.0 .0 12.0 2.4 -1.6 0.8 0.8 2.4 O X (Click graph to enlarge) Note: You can earn 50% partial credit for 4 - 5 correct answers