DIRECTION: Write the Yes if the msthemstical statement defines a quadratic inequality ang No if it is not.
1. x + 2 < 6
2. 3x ( 2x + 1) > y
3. t² – 2t³ – 7 < 0
4. x² ( x + 9 ) > 2
5. x² – x ( x + 2 ) < 0
6. n ( n + 2 ) ( n – 5 ) > 0
7. y = 3x² + 7x – 2
8. 8 – r² > 7r
9. y = x² – 9
10. y – x² > 3
1. x + 2 < 6
2. 3x ( 2x + 1) > y
3. t² – 2t³ – 7 < 0
4. x² ( x + 9 ) > 2
5. x² – x ( x + 2 ) < 0
6. n ( n + 2 ) ( n – 5 ) > 0
7. y = 3x² + 7x – 2
8. 8 – r² > 7r
9. y = x² – 9
10. y – x² > 3
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Answers & Comments
1. Yes
2. Yes
3. Yes
4. Yes
5. Yes
6. Yes
7. No
8. Yes
9. No
10. Yes