Practice Page
Directions: Read carefully.

1.
What is the common difference in the arithmetic sequence: -4x, -x, 2x, 5x, 8x, ... ?

 Choose:
-3x
-3
3x
3
skateboard1

 

 

2.
Given the sequence: m, (m + n), (m + 2n), (m + 3n), ...
Which expression can be used to determine the common difference of this sequence?

 Choose:
ap2
ap2a
ap2b
ap2c

 

 

3.
An arithmetic sequence has a first term of 8 and a sixth term of 38. What is the 50th term of this sequence?

Choose:
253
258
302
308
tennisballs4

 

 

4.
Which sequence has a common difference of 5?

Choose:
{k, 5k, 25k, 125k, ... }
{k + 1, k + 6, k + 11, k + 16, ... }
{0, 5k, 10k, 15k, ... }
{k + 5, k + 25, k + 125, k + 625, ... }
skateboard2

 

 

5.
Which function defines the sequence
-6, -10, -14, -18, ..., where f (1) = -6 ?

Choose:
f (n) = n - 26
f (n) = -n + 32
f (n) = 4n - 2
f (n) = -4n - 2
tennisballs2

 

 

6.
Find a6 for an arithmetic sequence where
a1 = 3x + 1 and d = 2x + 6		 cards

Choose:
a6 = 15x + 37
a6 = 9x + 19
a6 = 11x + 25
a6 = 13x + 31

 

 

7.
Find the 20th term of the sequence:
an = 0.5n - 15
  
sequencesholder
Choose:
-5
-14.5
5
24

 

 

8.
When asked to insert 3 arithmetic means between -3 and 17, what is the common difference?

Choose:
3
4
-4
5
tennisballs3

 

 

9.
Find the number of terms in the sequence
-1, 3, 7, ... , 55.

Choose:
12
14
15
16
tennisballs1

 

 

10.
A theater has 42 seats in the first row. Each row has 5 more seats than the row before it. Which expression represents the number of seats in the nth row?

Choose:
42 + (n + 5)
42 + (5n)
42 + (n + 1)(5)
42 + (n - 1)(5)

 

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