Math Problem Statement

Find the domain and range of the relation shown on the graph. Use the vertical line test to determine whether the graph is the graph of a function.

Solution

The image shows a problem where you are asked to determine the domain and range of a circular graph, then check whether the graph represents a function.

Analysis of the Graph:

The graph appears to show a circle centered at the origin (0,0)(0, 0), with a radius of 2. This is derived from the circular shape intersecting points along the x- and y-axes at (2,0)(-2, 0), (2,0)(2, 0), (0,2)(0, -2), and (0,2)(0, 2).

Domain:

  • The domain represents the possible values of xx. Since the circle spans from 2-2 to 22 on the x-axis, the domain is: Domain=[2,2]\text{Domain} = [-2, 2]

Range:

  • The range represents the possible values of yy. The circle spans from 2-2 to 22 on the y-axis, so the range is: Range=[2,2]\text{Range} = [-2, 2]

Is it a function?

  • To determine if the graph is a function, use the vertical line test. If any vertical line intersects the graph at more than one point, the graph does not represent a function. Since a vertical line drawn through the circle would intersect it at two points, the graph is not a function.

Answers for the Problem:

  1. The range of the relation: [2,2][-2, 2]
  2. The domain of the relation: [2,2][-2, 2]
  3. The graph is not the graph of a function because it fails the vertical line test.

Would you like more details or have any other questions? Here are five related questions for practice:

  1. What is the equation of a circle with a radius of 3 centered at (1,1)(1, -1)?
  2. How do you determine the range of a quadratic function like y=x24y = x^2 - 4?
  3. What is the domain of the function f(x)=1x3f(x) = \frac{1}{x-3}?
  4. How does the vertical line test determine if a graph represents a function?
  5. What is the difference between the domain and range of a function?

Tip: Always check if a graph is a function by using the vertical line test, especially when working with circular or elliptical graphs!

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Math Problem Analysis

Mathematical Concepts

Domain and Range
Graphs of Functions
Vertical Line Test
Relations

Formulas

Domain and range of a relation: the set of x-values (domain) and y-values (range) that the relation covers.
Vertical line test: If a vertical line crosses the graph at more than one point, the graph is not a function.

Theorems

Vertical Line Test

Suitable Grade Level

Grades 9-11