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Chapter 2 Section 7 Two-Variable Inequalities Algebra 2 Notes January 21, 2009 Warm-Ups Solve each inequality. Graph the solution on a number line. Solve and graph each absolute value equation or inequality. Practice Test Problem #12: Any Questions so far?? Solving an Inequality A Solution is any ordered pair that makes the equation TRUE Example: ◦ Possible Solutions: Graphing an Inequality Feasible Region: the area which includes all possible solutions to the inequality Graph the following inequality: Check your answer: ◦ pick an ordered pair in the feasible region and see if it makes the inequality true. Graphing an Inequality Graph the following inequalities: Steps to Graphing a Linear Equality Step 1: Graph the given equation Step 2: Use the correct line ◦ ◦ Step 3: Shade ◦ ◦ Use a solid line Use a dotted line Shade below the line Shade above the line Step 4: Check your answer! Graphing Absolute Value Inequalities Graph each absolute value inequality ◦ Remember! Plot the vertex first then find two other points on either side of the vertex! Homework #10 Pg 104 #1, 5, 7, 11, 15, 18, 2022, 28, 36-42 ◦ Yes, you will need graph paper! Don’t forget about the test on Friday!! ◦ Review day tomorrow