Write an explicit formula given an arithmetic sequence

Find the common difference: -34, -29, -24, -19, ...

• d = -5
• d = 5
• d = -6
• d = 6

Find the common difference: 29, 21, 13, 5, ...

• d = -10
• d = -9
• d = -8
• d = -7

Find the next three terms in the arithmetic sequence: -33, -24, -15, -6, ...

• -1, 7, 15
• -5, 2, 9
• 3, 12, 21
• -65, -73, -81

Find a₂₆ in the arithmetic sequence: -15, -35, -55, -75, ...

(Hint: Write the explicit rule first, then use it to solve)

• -515

• -490

• -535

• 460

Find the 35th term in the arithmetic sequence: -10, -14, -18, -22, ...

(Hint: Write the explicit rule first, then use it to solve)

• -216

• -148

• -146

• -150

Find the 32nd term of this sequence.

34, 37, 40, 43, ...

(Hint: Write the explicit rule first, then use it to solve)

• 32

• 64

• 127

• 356

Given the sequence:

25, 21, 17, 13,...

Write the explicit equation that models the sequence.

• a_n = 25 + (n-1)4

• a_n = 29 + (n-1)(-4)

• a_n = 25 +(n-1)(-4)

• a_n = 29 +(n-1)(4)

The next two terms of the sequence 2,-4, 8,-16 are

• 32, 64

• 32, -64

• -64, 108

• 32, 20

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

• 4

• 11

• 18

• 25

What is the 15th term of the sequence an = -3n+50

• 95
• -5
• 5
• -95