Quiz about Arithmetic Sequences

Question 1

What type of sequence is this?

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Answer

Only Coach Wagner knows

Question 2

What is the common difference or common ratio of this sequence?

Accepted Answer

common difference is 4

Answer

common difference is 3

Answer

common ratio is 4

Answer

common ratio is -4

Answer

common difference is -3

Question 3

What is the next term of this sequence?

Accepted Answer

21

Answer

23

Answer

20

Answer

26

Answer

25

Question 4

What type of sequence is this?

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Answer

Only Coach Wagner knows

Question 5

What is the common difference of this sequence?

Accepted Answer

common difference is -3

Answer

common difference is 4

Answer

common difference is 3

Answer

common difference is -4

Question 6

What is the next term of this sequence?

Accepted Answer

5

Answer

6

Answer

3

Answer

4

Answer

12

Question 7

Find the 66th term in the sequence given the EXPLICIT FORMULA $$a_n=2n-11$$

Accepted Answer

$$a_{66}=121$$

Answer

$$a_{66}=132$$

Answer

$$a_{66}=90$$

Answer

$$a_{66}=167$$

Answer

$$a_{66}=66$$

Question 8

Write the EXPLICIT RULE for the sequence.

Outline for explicit rule: $$a_n=a_1+\left(n-1\right)\left(d\right)$$

Accepted Answer

$$a_n=2+\left(n-1\right)\left(7\right)$$

Answer

$$a_n=7+\left(n-1\right)\left(2\right)$$

Answer

$$a_n=-2+\left(n-1\right)\left(-7\right)$$

Answer

$$a_n=6+\left(n+1\right)\left(2\right)$$

Question 9

Write the EXPLICIT RULE for the sequence.

Outline for explicit rule: $$a_n=a_1+\left(n-1\right)\left(d\right)$$

Accepted Answer

$$a_n=90+\left(n-1\right)\left(-5\right)$$

Answer

$$a_n=-5+\left(n-1\right)\left(90\right)$$

Answer

$$a_n=-5+\left(n-1\right)\left(5\right)$$

Answer

$$a_n=90+\left(n+1\right)\left(-2\right)$$

Arithmetic Sequences

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