Graph the solution set of each system of inequalities. y>x2+2 y≤x−2
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Step 1: Begin by graphing the boundary of the first inequality, . The boundary is the parabola . Since the inequality is 'greater than', use a dashed line to indicate that points on the line are not included in the solution set.
Step 2: Determine which side of the parabola to shade. Choose a test point not on the parabola, such as (0,0). Substitute into the inequality: which simplifies to . This is false, so shade the region above the parabola.
Step 3: Next, graph the boundary of the second inequality, . This is a straight line with a slope of 1 and a y-intercept of -2. Use a solid line because the inequality is 'less than or equal to', indicating that points on the line are included in the solution set.
Step 4: Determine which side of the line to shade. Use the test point (0,0) again. Substitute into the inequality: which simplifies to . This is false, so shade the region below the line.
Step 5: The solution set of the system of inequalities is the region where the shaded areas from both inequalities overlap. This is the area above the parabola and below the line .
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