Chapter 4

What is the next term in the sequence 12, 31, 40, 49, ... ?

• 56

• 57

• 58

• 59

Given the sequence 4, 11, 18, 25...... what is a₃ ?

• 4

• 11

• 18

• 25

The explicit formula is used to find a specific term in a sequence.

• True
• False

Is the following sequence arithmetic?
21, 13, 5, -3, ...

• YES
• NO

Is the following sequence arithmetic?
1, 4, 9, 16, ...

• YES
• NO

Determine the common difference for the arithmetic sequence
-5, 12, 29, 46, ...

• 7
• 17
• -7
• -17

Determine the common difference for the arithmetic sequence
9, 16, 23, 30, ...

• 7
• 17
• -7
• -17

Write the recursive rule for the arithmetic sequence
82, 76, 70, 64, ...

• a₁=82; a_n = a_n-1-6
• a₁=64; a_n = a_n-1-6
• a₁=82; a_n = a_n-1+6
• a₁=64; a_n = a_n-1+6

Write the recursive rule for the arithmetic sequence
-49, -35, -21, -7, ...

• a₁=-49; a_n = a_n-1 + 10
• a₁=-7; a_n = a_n-1 + 14
• a₁=-49; a_n = a_n-1 + 14
• a₁= -49; a_n = a_n-1 -14

Write the EXPLICIT rule for the arithmetic sequence

-10, -3, 4, 11,...

• a_n = 10 - 7(n-1)

• a_n = -10 +7(n-1)

• a_n = -7 + 10(n-1)

• a_n = 7 - 10(n-1)