Sequences-2

What is the common difference for the sequence?

Which term in this sequence is -7?

{-27, -26, -25, -24, -23,...}

• 19

• 20

• 21

• 22

• 23

What are the first 4 terms of the sequence?

• { 9, 7, 5, 3, 1, ...}

• { 9, 11, 13, 15, 17, ...}

• { 2, 18, 162, 1458, 13122, ...}

• { 2, -7, -16, -25, -34, ...}

• { 2, 11, 20, 29, 38, ...}

• -320

• -309

• -331

• -40

• -342

What is the common difference for the sequence?

• -8

• -9

• -10

• 10

• 9

Which has a common difference of 1.31?

• { -2, -0.69, 0.62, 1.93, 2.24, ...}

• { 0.31, 1.31, 2.31, 3.31, 4.31, ...}

• { 2, 3.31, 4.62, 5.93, 7.24, ...}

• { 1, -0.31, -1.62, -2.93, -4.24, ...}

• { 1, -9, -19, -29, -39, ...}

Keely must volunteer 227 hours for a community service project. She plans to volunteer for 4 hours each week. After her first week she has 223 hours left. After her second week she has 219 hours left. After her third week she has 215 hours left.

What is the common difference?

• 4

• -4

• 5

• -5

• None of these.

What does r represent?

• Radical

• Common difference

• Common ratio

What does a₁ represent?

• Any term

• First term

• Last term

What does n represent?

• Number

• Nothing

• Term you are trying to find