LI4 Inequalities- True or False?

Classify the following statements as true or false. LI4 Classify the following statements as true or false. 1. If 2  3, then 2•2  2•3. 4  6 True 2. If 9  7, then 9-1  7-1. 8  6 True 3. If 4  -1, then 4(-2)  -1(-2). -8  2 False Why is -8  2 false? What caused the false answer? -8  2

True or False? 4. If 7  10, then (3)7  (3)10. LI4 True or False? 4. If 7  10, then (3)7  (3)10. 21  30 True 5. If –6 -4, then -6•-4  -4•-4. 24  16 24  16 False 6. If –16  -20, then 4 -4  -5 True

True or False? 7. If 9  -12, then 8. If 6  -2, then 6+8  -2+8. -3  4 -3  4 False 8. If 6  -2, then 6+8  -2+8. 14  6 True 9. If –3  -1, then –3+-5  -1+-5. 24  16 True

Conclusion: When multiplying or dividing an inequality by a negative number, reverse the symbol.