MATHEMATIC 3410
New York University
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York UniversityMATHEMATIC 3410RootsQuadraticSE.
- Exam (elaborations) • 6 pages • 2021
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Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
1. Factor x 
2 
+ 3x + 2 by filling in the blanks: x 
2 
+ 3x + 2 = (x + )(x + ) 
(Hint: The numbers in the blanks have a sum of 3 and a product of 2.) 
2. What two values of x make the product above equal to zero? 
3. Plug each of these values into x 
2 
+ 3x + 2. What do you get? 
Gizmo Warm-up 
Quadratic functions are functions of the form f(x) = ax2 
+ bx + c. 
The graph of a quadratic function is a parabola, as shown to the 
righ...
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