
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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![**Graph Analysis for Function Intervals**
**Task:**
Use the graph to estimate the open intervals on which the function is increasing or decreasing. Then find the open intervals analytically. (Enter your answers using interval notation.)
**Function:**
\[ y = -(x + 2)^2 \]
**Graph Explanation:**
- The graph is a downward-opening parabola with its vertex at the point \((-2, 0)\).
**Interval Analysis:**
- **Increasing Interval:**
- The function is increasing on the interval from \((-∞, -2)\).
- **Decreasing Interval:**
- The function is decreasing on the interval from \((-2, ∞)\).
These observations can be verified analytically by examining the vertex and the direction of the parabola. The function increases as \(x\) approaches \(-2\) from the left and decreases as \(x\) moves to the right of \(-2\).](https://content.bartleby.com/qna-images/question/4f600c6f-5380-4bbd-930a-0f4ab51c1e59/fa51b92d-dfdb-4b23-9f90-4017d9155901/66a06dr_thumbnail.png)
Transcribed Image Text:**Graph Analysis for Function Intervals**
**Task:**
Use the graph to estimate the open intervals on which the function is increasing or decreasing. Then find the open intervals analytically. (Enter your answers using interval notation.)
**Function:**
\[ y = -(x + 2)^2 \]
**Graph Explanation:**
- The graph is a downward-opening parabola with its vertex at the point \((-2, 0)\).
**Interval Analysis:**
- **Increasing Interval:**
- The function is increasing on the interval from \((-∞, -2)\).
- **Decreasing Interval:**
- The function is decreasing on the interval from \((-2, ∞)\).
These observations can be verified analytically by examining the vertex and the direction of the parabola. The function increases as \(x\) approaches \(-2\) from the left and decreases as \(x\) moves to the right of \(-2\).
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