Alegbra

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  1. Axis of symmetry
    -b/2a
  2. Vertex
    Put x value from axis of symmetry back in.
  3. Exponential growth
    y=p(1+r)t
  4. Exponential decay
    y=p(1-r)t
  5. Quadratic formula
    Image Upload 1
  6. When do you solve by roots?
    When there's no b term
  7. Solve by roots 4x2=49
    • 4x2=49/4
    • x2=49/4
    • Square root to get
    • x=+or- 7/2
  8. When do you complete the square?
    When the middle coefficent is even and when there's no lead coefficent.
  9. Complete the square formula
    Image Upload 2
  10. Completet the square: X2-10X+13=0
    • 1. X2-10x=-13
    • 2. Image Upload 3=(5)2=25
    • 3. (Using the 5 and adding 25): (X-5)2=12
    • 4. Image Upload 4
    • 5. Image Upload 5
    • 6. Image Upload 6
Author
ID
157894
Card Set
Alegbra
Description
Notes from semester 2
Updated
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