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ACTIVITY 2: Identify Me!
State whether each of the following equations represents a quadratic function or not.
Justify your answer.
Equations
Yes or No
Justification
1. y = x² + 3
2. y = 4x-5
3. y = 18 - 38
4. y = 3* +3
5. y = 4x + x2 + 4
6. y = 3* + 4x + 2
7. y = 3x3
8. y = (x - 1)(x + 9)
9. (x - 2)(x + 2) + x2 - y = 0
10. 0 = y + 5x2 – 3x​