9.2 Arithmetic Sequence

9.2 Arithmetic Sequence

Multiple Select

• I

• II

• III

• IV

Open Ended

Open Ended

Answer the following questions

1. What are you going to learn today?

2. How can you use this lesson?

3. How will you be assessed on what you learn today?

Multiple Choice

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.  (Hint:  Simplify your equation.)

• a_n = 4n + 29
• a_n = -4n + 25
• a_n = -4n + 29
• a_n = 4n + 25

Multiple Choice

Find the first 3 terms of the arithmetic sequence described:

a₁ = 7, d = 8

• 8, 15, 22

• 7, 15, 23

• 7, 14, 21

• 8, 16, 24

Multiple Choice

Is this sequence arithmetic? Explain.

10, 7, 4, 1....

• Yes, the common difference is 3

• Yes, the common difference is -3

• Yes, the common difference is 5

• No, there is no common difference.

Multiple Choice

Find the next 3 terms in the sequence: 3, 6, 12, ....

• 15, 18, 21

• 18, 24, 30

• 24, 48, 96

• 24, 30, 36

Multiple Choice

Write the recursive formula for 4, 8, 12...

• a_n=a_n-1-7

• a_n=a_n-1-4

• a_n=a_n-1+3

• a_n=a_n-1+4

Multiple Choice

Create the explicit formula for the sequence:

2, 8, 14, ...

(Hint: Write your formula and then simplify it.)

• a_n=2+6n

• a_n=-6+6n

• a_n=6n-4

• a_n=4-6n

Multiple Choice

Find the 32nd term of this sequence.

9, 4, -1, -6, -11, ...

• 81

• -34

• -146

• -225