Grade 9 Sequences

Find the 10th term of each of the following arithmetic sequences:

19, 25, 31, 37, ....

• 73
• 67
• 81
• 89

Find the 10th term of each of the following arithmetic sequences:

101, 97, 93, 89, ....

• 70
• 61
• 65
• 75

Find the 10th term of each of the following arithmetic sequences:

8, 9 1⁄2, 11, 12 1⁄2, ....

• 22
• 19.5
• 20
• 21.5

Find the 15th term of each of the following arithmetic sequences:

31, 36, 41, 46, ....

• 101
• 96
• 86
• 111

Find the 15th term of each of the following arithmetic sequences:

5, -3, -11, -19, ....

• -99
• -85
• -73
• -107

Find the 15th term of each of the following arithmetic sequences:

a, a+d, a+2d, a+3d, ....

• a + 14d
• a + 15d
• a + 13d
• a + 12d

Consider the sequence 6, 17, 28, 39, 50, ...

Is the sequence arithmetic?

• YES

• NO

Consider the sequence 6, 17, 28, 39, 50, ...

Find the formula for its general term

• 10n - 4
• 12n - 6
• 9n - 3
• 11n - 5

Consider the sequence 6, 17, 28, 39, 50, ...

Find its 50th term

• 450
• 600
• 500
• 545

Consider the sequence 6, 17, 28, 39, 50, ...

Is 325 a member?

• YES

• NO