In this situation, the independent variable is **pollen count** (since it is the variable that changes and may affect the number of patients seen). The relationship between pollen count and number of patients with migraines can be represented as:
**For every 5 ppm of pollen in the air, 1 more patient visits Dr. Daffodil with a migraine.**
So, the answers are:
- **blank 1: pollen count**
- **blank 2: For every 5 ppm of pollen in the air, 1 more patient visits Dr. Daffodil with a migraine.**