When analyzing a graphed function, identifying the local maximum is crucial for understanding the behavior of the function. The local maximum represents the highest point within a specific interval where the function’s value reaches a peak. If you’re studying a graphed function and trying to determine which interval contains the local maximum from the options [–3, –2], [–2, 0], [0, 2], [2, 4], this guide will walk you through the process. We will break down the intervals, analyze the behavior of the function in each, and help you identify where the function reaches its peak.

The importance of identifying local maxima goes beyond simple graph analysis. In many real-world applications, this understanding is used in economics, physics, and engineering to optimize results and improve systems. Whether you’re preparing for an exam or applying this concept to solve practical problems, knowing how to find the local maximum of a function is a valuable skill.

we will explore which interval contains the local maximum by examining key mathematical concepts, offering step-by-step guides, and providing a clear answer to the question. We will also answer common related questions and offer further insights into function analysis.

Which Interval for the Graphed Function Contains the Local Maximum?

When analyzing a graphed function, identifying the local maximum is essential for understanding how the function behaves within a specific interval. A local maximum occurs at the highest point in a defined range, where the function increases up to a peak and then decreases afterward. The local maximum is different from the global maximum, which is the highest point over the entire domain. To determine which interval contains the local maximum, we examine the behavior of the function over several intervals.

Given the intervals [–3, –2], [–2, 0], [0, 2], and [2, 4], we need to analyze each segment to see where the function peaks. First, let’s look at the interval [–3, –2]. In this range, the graph shows an increasing trend but no peak. The function is rising but hasn’t reached its highest point, meaning no local maximum occurs in this interval.

Next, in the interval [–2, 0], we notice that the function increases sharply as it approaches zero. At x = 0, the function appears to reach its highest value before beginning to decrease. This behavior indicates that a local maximum exists within this interval because the function reaches a peak and then starts to decline.

Now, consider the interval [0, 2]. Here, the function shows a decreasing trend, moving downward without reaching any higher point. Since the function is falling, there is no local maximum in this range. Finally, in the interval [2, 4], the function continues to decrease, meaning no peak or local maximum is present in this interval either.

From this analysis, it’s clear that the local maximum of the graphed function occurs in the interval [–2, 0]. This is the range where the function increases to its highest value and then begins to decrease. Understanding where a local maximum lies is crucial for solving many problems in calculus, physics, and engineering, as it helps to optimize systems and predict behaviors.

the interval [–2, 0] contains the local maximum of the function, providing a clear peak in the graph’s behavior. This is an important concept when analyzing functions and understanding how they operate within specific intervals.

**Key Differences Between Local and Global Maximum**

Understanding the differences between a local and a global maximum is essential when analyzing functions. While both concepts deal with the highest points on a graph, they apply to different scopes of the function. Here are the key differences broken down in a clear, numbered format:

**1. Definition**

**Local Maximum: **A local maximum refers to the highest point within a specific interval or neighborhood of the function. In simpler terms, it’s the peak within a certain region, but not necessarily the highest point across the entire function

**Global Maximum: **A global maximum is the highest point over the entire domain of the function. It represents the absolute peak across all possible intervals.

**2. Scope**

**Local Maximum: **The local maximum is restricted to a small, defined interval. It considers only the points within a small surrounding area

**Global Maximum:** The global maximum encompasses the entire function, meaning it looks for the highest point among all x-values across the entire domain.

**3. Uniqueness**

**Local Maximum:** A function can have multiple local maxima in different intervals. For instance, in a wavy graph, each peak could represent a local maximum, depending on the behavior of the function in various regions.

**Global Maximum:** There can only be one global maximum for a given function. It is the single highest point where the function reaches its maximum value over the entire domain.

**4. Example in Real Life**

**Local Maximum:** Imagine hiking up a mountain range. You may reach the top of a particular peak in your vicinity, but it might not be the tallest mountain in the entire range. This peak is the local maximum in your area.

**Global Maximum:** Now, if you reach the highest peak in the entire mountain range, this is the global maximum—there’s no higher point in the entire domain.

**5. Mathematical Identification**

**Local Maximum: **To find a local maximum, the function’s derivative is zero, and the second derivative is negative within a specific interval.

**Global Maximum:** Finding the global maximum involves checking the entire function, including endpoints, and comparing all local maxima to determine which one is the highest overall.

Understanding these differences helps in function analysis, optimization problems, and applications in various fields like economics, physics, and engineering.

**The Final Words**

identifying the local maximum on a graph requires analyzing how the function behaves in each interval. By examining the function’s increase and decrease across the intervals, we determine that the interval [–2, 0] contains the local maximum. This is because the function peaks within this range and then decreases. Whether you’re working with this concept in academics or applying it to practical problems, understanding how to find the local maximum is key to mastering function analysis.

**FAQ**

**Can a function have more than one local maximum?**

Yes, a function can have multiple local maxima, depending on its shape and the number of peaks within different intervals.

**How do you calculate the local maximum?**

The local maximum is calculated by finding where the derivative of the function equals zero, and the second derivative is negative, indicating a peak.

**Which interval contains the local maximum of the function?**

The local maximum is found in the interval [–2, 0], where the function reaches its peak before declining.