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 = -10x %2b 8 %2b4x^2
1. Quadratic Function
2. Vertex
3. y = 8x - 10x^2 %2b 4
4. y = 4x%2b10 - 8x^2
5. y= -10x^2 - 8x - 4
6. y = 10x %2b 4x ^2 - 8
7. y= 8x^2 %2b 4x -10
8. y = -8x%2b10 %2b 4x^2
9. axis of symmetry
10. y = -4x^2 -10 - 8x
11. roots
12. y= -8x^2 - 4x %2b 10
13. y = 10x ^ 2 -8x %2b 4
14. y= -8x - 4x^2 %2b 10
15. y= -4 - 10x %2b 8x^2
Answers:
0. a=-4
b= -8
c= -10
opens down
1. a= 10
b= -8
c= 4
opens up
2. a= 4
b= 10
c= -8
opens up
3. a = -8
b = 4
c=10
opens down
4. a=8
b=4
c=-10
opens up
5. a=-4
b=-8
c=10
opens down
6. u-shaped
degree of 2
parabola
7. zeros
solutions
x-intercepts
8. a= -10
b = 8
c = 4
opens down
9. a= -10
b = -8
c= -4
opens down
10. minimum or maximum
11. a= 8
b= -10
c= -4
opens up
12. a= 4
b= -8
c= 10
opens up
13. a=-8
b=-4
c=10
opens down
14. a= 4
b= -10
c= 8
opens up
15. line cutting graph into two equal parts, goes through vertex
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