1. **State the problem:** Denise read for 2 hours and finished 1 chapter at school. Using the graph, we want to find how many chapters Denise finished today in total. 2. **Analyze the graph:** The graph shows a linear relationship between time (hours) and number of chapters read. The points given are (1, 2), (2, 4), (3, 6), and (4, 8). 3. **Identify the pattern:** From the points, the number of chapters increases by 2 for every 1 hour of reading. This suggests the formula: $$\text{Chapters} = 2 \times \text{Time}$$ 4. **Calculate chapters read at home:** Denise read for 2 hours at home, so chapters read at home are: $$2 \times 2 = 4$$ 5. **Add chapters read at school:** Denise finished 1 chapter at school. 6. **Total chapters finished today:** $$4 + 1 = 5$$ **Answer:** Denise finished 5 chapters today.