Example: Test point (0, 3): 3 3(0) 1  (0)2   3 1  Example: Test point (2, 2): The test point satisfies the inequality, so the region 2  3(2)  4 above the parabola should be shaded. 2  2 12. a) 13.95x 9.50y 150, where is the number of   x The test satisfies the inequality, so the half-plane tickets for adults and is the number of tickets for y to the right of the boundary should be shaded. children 10. {x  3    3, R} x x b) 11. c) Example: The number of tickets must be a whole number. The number of tickets can be various combinations of 0 to 10 adult tickets and 0 to 15 children’s tickets, where the total cost does not go over $150. 13. a) Example: 2 0    x2 x b) Example: 12 0 x2  x   {P 30 70, R} 14.   P P
Example: Test point (2, 2): 2  3(2)  4 2  2 The test satisfies the inequality, so the half-plane to the right of the boundary should be shaded. 10. {x  3  x   3, x R} 11. Example: Test point (0, 3): 3  (0)2  3(0)  1 3  1 The test point satisfies the inequality, so the region above the parabola should be shaded. 12. a) 13.95x  9.50y  150, where x is the number of tickets for adults and y is the number of tickets for children b) c) Example: The number of tickets must be a whole number. The number of tickets can be various combinations of 0 to 10 adult tickets and 0 to 15 children’s tickets, where the total cost does not go over $150. 13. a) Example: x2  x  2  0 b) Example: x2  x  12  0 14. {P 30  P  70, P R}
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