1. March 21, 2012
Warm-up:
1. Fill in the table.
x x2­ ­ 3x + 2
1
2
3
4
5
2. Write the equation of the line through the points
below.
(-3, 5) and (2, -1)
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2. March 21, 2012
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3. March 21, 2012
9.1: Sequences and Series
Essential Question:
How do you represent a sequence of
numbers or the sum of a sequence?
Standards:
Algebra 2: 22.0, 23.0
Math Analysis: 8.0
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4. March 21, 2012
What is a "sequence"?
Infinite sequence:
Finite sequence:
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5. March 21, 2012
Ex. 1﴿ Write the first five terms of the
sequence.
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6. March 21, 2012
Ex. 2﴿ Write the first five terms of
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7. March 21, 2012
Ex. 3﴿ Write an expression for the most
"apparent" nth term of each sequence.
a﴿ 1, 5, 9, 13, 17, …
b﴿ 2, ­9, 28, ­65, 126
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8. March 21, 2012
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9. March 21, 2012
Recursive Sequence
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, . . .
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10. March 21, 2012
Ex. 4﴿ Write the first five terms of the
sequence defined recursively.
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11. March 21, 2012
The Factorial!
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12. March 21, 2012
Ex. 5﴿ Write the first five terms of the
sequence given. Begin with n=0.
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13. March 21, 2012
Ex. 6﴿ Evaluate each factorial expression.
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14. March 21, 2012
Assignment:
9.1A p. 649
#2, 7, 12, 23, 25, 37, 39, 41, 51,
55, 61, 62, 66, 69
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