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

Choose:
 -3x -3 3x 3

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:

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

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, ... }

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

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

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

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

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

Choose:
 12 14 15 16

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)