MINI LESSON
Interpreting Quadratic Graphs from Tables
Quadratic relationships often show a maximum or minimum value.
A table of values can reveal the vertex of a parabola.
When a quadratic models a real-world situation, the vertex often has the most important meaning.
Look for the input where the output is highest or lowest.
Question 1
A ball was launched into the air, and its height above the ground was recorded each second, as shown in the table below. Based on these data, which statement is a valid conclusion?
| Time (sec) | Height (ft) |
|---|---|
| 0 | 11 |
| 1 | 59 |
| 2 | 75 |
| 3 | 59 |
| 4 | 11 |