Are you series-ous?!
Can sumbody help me?
Arith, Arithmagic,...Oh, however you say it!
Geometric! I Thought This Was Algebra II!
Potpourri
100
Is the following series arithmetic or geometric? Explain

2+4+6+8

Arithmetic, because the terms of the series are 2, 4, 6, 8 and these terms have a common difference of 2.

100

How many terms are you summing in the sigma notation Mr. Dean is about to write on the board?


275

100

Is the following sequence arithmetic? Explain

3, 6, 9, 12, ...

Yes, because there is a common difference of 3.

100

Is the following sequence geometric? Explain

4, 2, 1, 1/4, ....

No, the first few terms have a common ratio of 1/2, but between the 3rd and 4th term, it becomes 1/4.

100

What are the four houses at HSLA Harlem?

Prince, Johnson, Basquiat, Garvey

200

Is the following series arithmetic, geometric, or neither? Explain

1 + 4 + 9 + 16

Neither, because the terms in this series are 1, 4, 9, 16 and these terms do not have a common difference or a common ratio.
200

If you were to use the summation equation to find the sum Mr. Dean is about to write on the board, what would be a1?

7

200

What is a real world scenario that could be modeled by an arithmetic sequence?

Mr. Dean will confirm answers.

200

What is a real world scenario that can be modeled by a geometric sequence?

Mr. Dean will confirm the scenarios.

200

What fast food restaurant has the most locations worldwide?

Subway
300

Write the expanded form of the sigma notation Mr. Dean writes on the board.


8 + 24 + 72 + 216 + 648

300

If you were to use the summation equation to find the sum Mr. Dean is about to write on the board, what would be am?

-1363

300

Describe the graph of an arithmetic sequence.

The graph of an arithmetic sequence is a set of dots, not connected by a line, that form a straight line.

300
Describe the graph of a geometric sequence.

The graph of a geometric sequence is a set of points (not connected by a line) that is curved and the gap between consecutive points changes.

300

Where can you find the SA technology troubleshooting guide?

On the grade 9 Google classroom

400

Write the summation notation equivalent of the following:    5 + 3 + 1 - 1 - 3

Mr. Dean will write the answer on the board.

400

Jack took a job making $40,000 in his first year.  If Jack gets a 7% raise each year, how much total money will Jack make in the first 10 years with his company? (Round to the nearest whole dollar.)

$552,658

400

Write an equation to model the following sequence of numbers:

17, 22, 27, ...

an=17+5(n - 1)

400

Write an equation to model the following sequence: 

9, 6, 4, ....

an=9(2/3)(n-1)

400

Where is the sea of tranquility?

On The Moon

500
Mr. Dean is working on getting his skydiving certification.  This weekend, he is going to complete 10 skydives.  He plans to complete one and a half times as many dives each subsequent weekend.  If Mr. Dean needs 500 dives to get his certification and wants to complete it in two months (assuming there are 4 weeks in a month, will he reach his goal? Explain.

No.  Using the summation formula, you find that he will only complete 492 skydives, which is less than 500.

500

Mr. Dean's dog, Zelda is in training for the next 30 days.  On the first day of training, the trainer gave Zelda 40 dog treats.  If the number of dog treats given by the trainer decreases by 1.5 per day, how many dog treats will Zelda have over the program?

547.5

500

What is the common difference of the following sequence:

5x + 1, 8x, 3x + 7, ....

2

500

What is the equation of the following sequence?

x, 4x, 16x, ....


an=(x)(4)n-1

500

Who are the four senior leaders at HSLA Harlem and what are their roles?

Mr. Rojas - Head Principal

Ms. German - Dean of Academics

Ms. Ramos - Dean of Students

Mr. Baca - Director of Operations

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