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9-5 Inequalities in Two-Variables 9P6: Use inequalities • Inequalities • 1. Graph using Slope (m) and y intercept (b) • 2. Decide if line is solid ( ≥ or ≤ ) or dashed ( > or < ) • 3. Shade ALL Solutions ( > or ≥ ) Above line • ( < or ≤ ) Below Line • • Example 1: • y < 2x -1 • Example 2: • y≥-x+2 • Example 3: • x<3 • Example 4: • 4 ≤ 2x + y To write an inequality for a graph Start with y mx +b Fill in alligator (inequality) and m and b • Example 7: Doritos cost $3.00 a bag and 2 Liters cost $1.00. If you are having a party and don’t want to spend more than $20, How many of each can you buy? Assignment • Day 1: WS • Day 2: 9-5/419-420/4-32 m4,34-39,46-53