Question

1. Find the next two terms of the sequence.

2, 6, 10, 14, ellipsis (1 point)
16, 18
18, 24
18, 22
16, 20
2. Find the next two terms of the sequence.

10, 4, negative 2, negative 8, ellipsis (1 point)
negative 6, negative 10
negative 10, negative 12
negative 12, negative 16
negative 14, negative 20
3. Find the next two terms of the sequence.

2, 20, 200, 2000, ellipsis (1 point)
20,000, 200,000
20,000, 2,000,000
4, 40
200,000, 2,000,000
4. Find the next two terms of the sequence.

1.1, 2.2, 3.3, 4.4, ellipsis (1 point)
4.5, 5.5
5, 6
5.6, 6.7
5.5, 6.6
5. Tell whether the sequence is arithmetic. If it is, identify the common difference.

negative 7, negative 3, 1, 5, ellipsis (1 point)
Not arithmetic
Arithmetic, common difference is 4
Arithmetic, common difference is 8
Arithmetic, common difference is 7
6. Tell whether the sequence is arithmetic. If it is, identify the common difference.

negative 9, negative 17, negative 26, negative 33, ellipsis (1 point)
Not arithmetic
Arithmetic, common difference is 8
Arithmetic, common difference is 9
Arithmetic, common difference is 7
7. Tell whether the sequence is arithmetic. If it is, identify the common difference.

nineteen eight negative three negative fourteen elipsis (1 point)
Not arithmetic
Arithmetic, common difference is negative 11
Arithmetic, common difference is 5
Arithmetic, common difference is 17
8. Tell whether the sequence is arithmetic. If it is, identify the common difference.

one-half, one-third, one-fourth, ellipsis (1 point)
Not arithmetic
Arithmetic, common difference is one-sixth
Arithmetic, common difference is two-thirds
Arithmetic, common difference is 1
9. Write a function rule to represent the sequence.

0.3, 0.9, 1.5, 2.1, ellipsis (1 point)
A of n equals 0.6 plus left parenthesis n minus 1 right parenthesis times 0.3
A of n equals 0.6 minus left parenthesis n right parenthesis times 0.3.
A of n equals 0.3 plus left parenthesis n minus 1 right parenthesis times 0.6
A of n equals 0.3 plus left parenthesis n plus 1 right parenthesis times 0.6
10. Write a function rule to represent the sequence.

47, 32, 17, 2, ellipsis (1 point)
A of n equals 47 plus left parenthesis n minus 1 right parenthesis times 15
A of n equals 47 plus left parenthesis n minus 1 right parenthesis times negative 13
A of n equals 47 plus left parenthesis n minus 1 right parenthesis times negative 15
A of n equals 32 plus left parenthesis n minus 1 right parenthesis times 15

Answer 1

#1, keep adding 4
These are all very similar.
Just subtract the first term from the second to get the amount you have to keep adding.

For the ones you have to check, as whether the same amount is added each time. If not, it's not an Arithmetic Sequence.

Answer 2

subtract the first term from the second to see what you need to keep adding.
For #1, that would be 4.
Similarly for all the rest

Answer 3

Yes,
I agree. If you do this it will help you figure out the answers on your own without cheating.

Answer 4

Practice: Arithmetic Sequences Practice
1. C
2. D
3. A
4. D
5. B
6. A
7. B
8. A
9. C
10.C
*All correct answers*