Geometric Sequence Equation Word Problems

Which sequence type, and common ratio/difference is correct for the table?

• arithmetic

  common ratio = 2

• geometric

  common ratio = 2

• arithmetic

  common difference = 2

• geometric

  common difference = -2

Find the explicit formula for the sequence shown in the graph.

Find the explicit formula for the sequence shown in the graph.

Which type of sequence is shown in the graph?

• Arithmetic

• Geometric

• Neither

The "a" value in f(x)=a(b)^x for geometric sequences represents what?

• first term

• term we're looking for, minus one

• common difference

• common ratio

Match the following for the prompt: A bacteria colony starts with 5 bacteria and triples every hour.

• Initial value

• 5

• Explicit equation

• 3

• Recursive equation

• Common ratio

Daisy received $2 on her first birthday. Each year, the amount of money she received tripled. How much money will she receive on her 5^th birthday?

• $10

• $300

• $162

• $416

You have $729 in the bank on Day 1, $243 on Day 2, and $81 on Day 3. Write the explicit formula that expresses the sequence.

• a_n = 729(1/3)^n-1

• a_n = 729(3)^n-1

• a_n = 1/3(a_n-1)

• a_n = 1/3(729)^n-1

Carey is organizing her books and putting them on shelves. She put 2 books on the first shelf, 8 books on the second shelf, 32 books on the third shelf, and 128 books on the fourth shelf. What kind of sequence is this?

• Geometric

• Arithmetic

• Both

• Neither

On a scale of 1-5, 1 meaning "I have no clue what is going on" to 5 meaning "I got it completely," how would you rate your understanding of identifying Geometric  Sequences: Graphing & Word Problems ?

• 1

• 2

• 3

• 4

• 5