NC Math 1 · Standard F-IF.4 · Interpreting Key Features of Functions
🌡️ Section 1 — Reading the Oven Temperature Graph
During a baking session, the oven temperature (°F) changes over time (minutes). Study the graph below, then answer the questions.
1. What is the maximum oven temperature shown in the graph?
2. During which interval is the oven temperature increasing?
3. What is the y-intercept of this graph, and what does it mean in context?
🍪 Section 2 — Cookies Sold at the Bake Sale
The table shows the number of cookies sold (y) each hour (x) at the school bake sale. Use the table to answer the questions.
| Time (hours, x) | 0 | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|
| Cookies sold (y) | 0 | 12 | 24 | 24 | 18 | 6 |
4. During which hours did cookie sales decrease?
5. What is the maximum number of cookies sold in a single hour?
6. Fill in the blank: The function is positive (y > 0) for all x-values from x =
🎯 Section 3 — Match the Feature to Its Meaning
Drag each cooking story card to the correct function feature it describes. Drop it into the matching box on the right.
Story cards — drag these to the boxes below:
🏆 Section 4 — The Grand Bake-Off
A baker tracks the number of bread loaves that fit in the oven at different temperature settings. The function is positive between x = 2 and x = 10, has a maximum at (6, 8), and equals zero at x = 2 and x = 10.
7. What are the x-intercepts of this function?
8. What does the maximum point (6, 8) tell us in this baking context?
9. Based on this description, on which interval is the function negative (below zero)?
🎉 Your Bake-Off Results
Key vocabulary reviewed: