Subjects algebra

Function Intervals A50Dd4

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Question: Consider the function graphed at right. Join multiple intervals with a union. A) Give the interval(s) where the function is increasing. B) Give the interval(s) where the function is decreasing. C) Give the interval(s) where the function is constant. D) Give the domain of the function using interval notation. E) Give the range of the function using interval notation.
1. **Problem Statement:** We analyze the graph of a piecewise function described as follows: - Increasing from $x = -10$ to $x = -7$ - Decreasing from $x = -7$ to $x = -5$ - Constant from $x = -5$ to $x = -2$ - Increasing from $x = -2$ to $x = -1$ - Constant from $x = -1$ to $x = 10$ We need to find intervals where the function is increasing, decreasing, constant, and determine its domain and range using interval notation. 2. **Intervals where the function is increasing:** The function rises on two intervals: $$\text{Increasing intervals} = (-10, -7) \cup (-2, -1)$$ 3. **Intervals where the function is decreasing:** The function falls on one interval: $$\text{Decreasing interval} = (-7, -5)$$ 4. **Intervals where the function is constant:** The function is constant on two intervals: $$\text{Constant intervals} = [-5, -2] \cup [-1, 10]$$ 5. **Domain of the function:** The domain covers all $x$ values from the smallest to the largest given: $$\text{Domain} = [-10, 10]$$ 6. **Range of the function:** From the graph description: - The function rises from some value at $x=-10$ to a higher value at $x=-7$ - Then decreases to a lower value at $x=-5$ - Remains constant from $x=-5$ to $x=-2$ - Rises again from $x=-2$ to $x=-1$ - Remains constant from $x=-1$ to $x=10$ Assuming the lowest value is at $x=-10$ and the highest at $x=-1$ or $x=10$, the range is continuous between these values. Hence, the range is: $$\text{Range} = [f(-10), f(-1)]$$ Since exact function values are not given, we denote the range as the interval covering all output values from the minimum at $x=-10$ to the maximum at $x=-1$ (or $x=10$). **Summary:** - Increasing: $(-10, -7) \cup (-2, -1)$ - Decreasing: $(-7, -5)$ - Constant: $[-5, -2] \cup [-1, 10]$ - Domain: $[-10, 10]$ - Range: $[f(-10), f(-1)]$ (exact values depend on graph scale)