Arithmetic Sequences and Partial Sums

What is the common difference in the sequence {2, 7, 12 ...}

• -5

• 5

• 2

• 9

Is the sequence {-4, 10, 23, 27...} an arithmetic sequence?

• yes

• no

Given a₁ = 3 and a₆= 13, what is the common difference?

• 2

• 3

• 10

• 1

9, 19, 29, 39, ... find a₃₇

• 365

• 321

• 369

• 341

• 8

• 5

• 3

• 1

• first term

• initial value

• increment

• starting point

• change rate

• common ratio

• opens up/down

• distance

• slope

• common difference

5, −2, −9, −16, ... is an arithmetic sequence

• yes

• no

Find S₂₆ of the sequence {3, -1, -5, -9...}

• -346

• -1423

• -97

• -1222

In the sequence {7, 9, 11, 13...} a₂ =

• 7

• 9

• 16

• 20

What is d in the sequence {8, 4, 0, -4,...}

• 12

• 8

• 4

• -4