 Practice with Sequences Terms of Use    Contact Person: Donna Roberts  1.
Which of the following function formulas describes this sequence?
{4, 8, 16, 32, 64, ...}

Choose:
 f (n) = n + 4 f (n) = 4n f (n) = 2n f (n) = 2n+1 2.
The following diagrams form a sequence based upon the number of toothpicks needed to create the shapes. a) Which numerical list represents this sequence?
Choose:
 {8, 16, 24, ...} {8, 15, 22, ...} {10, 20, 30, ...} {10, 19, 28, ...}

b)
How many toothpicks are needed to create the 6th diagram in the sequence?
Choose:
 43 48 55 60

3.
Which sequence is generated by an = 4n - 3 ?

Choose:
 {1, 4, 7, 10, 13, ...} {0, 1, 5, 9, 13, ...} {1, 5, 9, 13, 17, ...} {0, 1, 4, 7, 10, ...} 4.
The sequence shown below is an arithmetic sequence. What is the value of the missing term?
{6, 9, , 15, 18, ...}

Choose:
 10 11 12 14 5.
Which of the following sequences can be generated using ?

Choose:     6.
Which of the following sequences is a geometric sequence? Choose:
 {2, 4, 6, 8, 10, ...} {2, 4, 7, 11, 16, ...} {2, 4, 8, 16, 32, ...} {2, 8, 14, 20, 26, ...}

7.
What is the common difference in this arithmetic sequence?
{16, 10, 4, -2, -8, ...} Choose:
 4 -4 6 -6

8.
What are the first three terms of this sequence?
an= n2 + 1

Choose:
 0, 2, 5 1, 2, 3 2, 5, 10 4, 9 16 9.
What is the tenth term of this sequence?
an= (-1)n-1• n2

Choose:
 10 -10 100 -100 10.
Find the fourth term of this geometric sequence.
{459, 153, 51, ...}

Choose:
 17 -17 25.5 -25.5 11.
What are the first four terms of this sequence?
f (1) = -2;    f (n) = f (n - 1) + 4

Choose:
 {-2, 2, 6, 10} {-2, 0, 2, 4} {-2, -8, -32, -128} {-2, 2, 4, 6} 12.
Which function "rule" is at work in the function machine shown at the right?

Choose:

 f (n) = n + 4 f (n) = 2n + 3 f (n) = 3n + 2 f (n) = 4n - 1  