Math Problem Statement

Find range and domain for the given graph. Express your answer using interval notation.

Solution

Let's analyze the graph provided to determine the domain and range:

Domain

The graph shows the x-values where the function exists. It starts at x=7x = -7 and continues rightward. There's a break in the function where no y-values exist from x=1x = 1 to x=4x = 4, and then the function continues from x=4x = 4 onwards indefinitely. Thus, the domain in interval notation is: Domain=[7,1)(4,)\text{Domain} = [-7, 1) \cup (4, \infty)

Range

The range can be observed from the y-values the function takes:

  • From x=7x = -7 to x=1x = 1, the y-values decrease from just above y=1y = -1 down to approximately y=1y = -1.
  • From x=4x = 4 and beyond, the function's y-values start just below y=0.2y = 0.2 and seem to level off towards y=0y = 0 as xx approaches infinity.

Thus, the range, noting that the graph does not appear to reach exactly y=0.2y = 0.2 but gets arbitrarily close, is: Range=[1,0)\text{Range} = [-1, 0)

Would you like more details on how these intervals are determined or have any other questions? Here are a few related topics you might find interesting:

  1. What is interval notation and how is it used?
  2. How can breaks in a graph affect the domain and range?
  3. How to find limits of a function graphically?
  4. What are common features to identify in a graph of a function?
  5. How to handle piecewise functions when determining domain and range?

Tip: When determining the domain and range from a graph, always check for breaks, holes, or asymptotes as these can significantly affect the intervals.

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Math Problem Analysis

Mathematical Concepts

Functions
Domain and Range
Graphical Interpretation

Formulas

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Theorems

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Suitable Grade Level

Grades 9-12