1. Warm-up
1. Corey bought 48 roses for his girlfriend for Valentine’s Day. Everyday 10% of the roses start to wilt. Write an equation describing this situation. How long will it take for all the roses to wilt? 2. Topanga invested $30,000 in stocks. The stocks are increasing in value by 2.5% a year. Write an equation describing the situation. How long will it take for the stocks to double?

2. Arithmetic, geometric, or neither
For each representation of a sequence, decide if the sequence is arithmetic, geometric, or neither. Give reasons for your answer.

3. For each representation of a function, decide if the function is arithmetic, geometric, or neither. Give reasons for your answer. 1.
Arithmetic
Number of Days 1 2 3 4 5
Amount of Students 8 16 24 32 40

4. For each representation of a function, decide if the function is arithmetic, geometric, or neither. Give reasons for your answer. 2.
Neither x 1 2 3 4 5 y -4 8
-16 32

5. For each representation of a function, decide if the function is arithmetic, geometric, or neither. Give reasons for your answer. 3. This sequence has a common ratio.
Geometric

6. For each representation of a function, decide if the function is arithmetic, geometric, or neither. Give reasons for your answer. 4. A sequence is as follows: {(1, 4), (2, 16), (3, 64), (4, 256)}
Geometric

7. For each representation of a function, decide if the function is arithmetic, geometric, or neither. Give reasons for your answer. 5. Each term in a sequence is exactly -8 units away from the previous term.
Arithmetic

8. Linear or Exponential?
Determine if the table represents a linear or exponential equation. Write the equation. X -3 -2 -1 1 2 Y
125 25 5
1/5
1/25 X -3 -2 -1 1 2 Y 37 25 13
-11
-23

9. Arithmetic or Geometric?
Determine if the table represents an arithmetic or geometric sequence. Write the equation. X 1 2 3 4 5 Y 12 36
108
324 X 1 2 3 4 5 Y 50 60 70 80 90