Question

PLEASE PLEASE PLEASE HELP!!! I NEED MY GRADE TO BE UP BY BEFORE TOMORROW THESE ARE ALL THE POINTS I HAVE! 35 POINTS!!! Match the descriptions/sequences below, not every option ((a) through (j)) will be used.

1. A arithmetic sequence that starts at 1 and has a common difference of 3

2. A geometric sequence that starts at 1 and has a common ratio of 3

3. 15, 19, 23, 27, 31, ...

4. 3, 27/3, 27, 243/3, 243, ...

5. -2, 16/4, -8, 16, -32, ...

6. 8, 40, 200, 1000, 5000, ...

7. 1432, 143.2, 14.32, 1.432, ...

Options:

(a) geometric sequence; common ratio of -2

(b) arithmetic sequence; common difference of 4

(c) geometric sequence; common ratio of 3

(d) 1, 4, 7, 10, 13, ...

(e) 1, 3, 6, 9, 12, ...

(f) geometric sequence; common ratio of 0.1

(g) geometric sequence; common ratio of 2

(h) 1, 3, 9, 27, 81, ...

(i) geometric sequence; common ratio of 5

(j) geometric sequence; common ratio of 0.01

Answer 1

1. A arithmetic sequence that starts at 1 and has a common difference of 3

• (d) 1, 4, 7, 10, 13, ...

2. A geometric sequence that starts at 1 and has a common ratio of 3

• (h) 1, 3, 9, 27, 81, ...

3. 15, 19, 23, 27, 31, ...

• (b) arithmetic sequence; common difference of 4

4. 3, 27/3, 27, 243/3, 243, ...

• (c) geometric sequence; common ratio of 3

5. -2, 16/4, -8, 16, -32, ...

• (a) geometric sequence; common ratio of -2

6. 8, 40, 200, 1000, 5000, ...

• (i) geometric sequence; common ratio of 5

7. 1432, 143.2, 14.32, 1.432, ...

• (f) geometric sequence; common ratio of 0.1