Quadratic Functions ABC%27sAuthor: Sturdivant Veronica Description: Identify the a, b, and c for each of the quadratics and determine if the graph opens up or downward. Keywords: , , , , , , online teaching
Content: Definitions: 0. y= -8x^2 - 4x %2b 10 1. y = -10x %2b 8 %2b4x^2 2. y = 8x - 10x^2 %2b 4 3. y = 10x %2b 4x ^2 - 8 4. y= -10x^2 - 8x - 4 5. y= -4 - 10x %2b 8x^2 6. y= 8x^2 %2b 4x -10 7. y = 10x ^ 2 -8x %2b 4 8. y = -4x%2b10x - 8x^2 9. axis of symmetry 10. Vertex 11. Quadratic Function 12. y= -8x - 4x^2 %2b 10 13. roots 14. y = -4x^2 -10 - 8x 15. y = -8x%2b10 %2b 4x^2
Answers: 0. line cutting graph into two equal parts, goes through vertex 1. a= 8
b= -10
c= -4
opens up 2. a=-8
b=-4
c=10
opens down 3. a= 10
b= -8
c= 4
opens up 4. a= 4
b= 10
c= -8
opens up 5. a= -10
b = 8
c = 4
opens down 6. a = -8
b = -4
c=10
opens down 7. a=-4
b= -8
c= -10
opens down 8. a= -10
b = -8
c= -4
opens down 9. minimum or maximum 10. u-shaped
degree of 2
parabola 11. a= 4
b= -10
c= 8
opens up 12. a=8
b=4
c=-10
opens up 13. zeros
solutions
x-intercepts 14. a=-4
b=-8
c=10
opens down 15. a= 4
b= -8
c= 10
opens up
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