How do you graph a relation and its inverse using open circles for the points of the inverse?

Graphing a relation along with its inverse is a visually appealing way to understand the relationship between two sets of data. To begin, you’ll need to follow a series of steps carefully for clarity and precision.

Step 1: Understand the Relation

First, you need to identify the relation you want to graph. A relation can be expressed as a set of ordered pairs (x, y). For example, let’s consider the relation: R = {(1, 2), (2, 3), (3, 4), (4, 5)}.

Step 2: Plot the Relation

Using a Cartesian coordinate system, plot each point of the relation:

  • (1, 2)
  • (2, 3)
  • (3, 4)
  • (4, 5)

Connect these points with closed circles if they’re included in the relation.

Step 3: Determine the Inverse of the Relation

The inverse of a relation is found by swapping the x and y values of each ordered pair. So, the inverse of relation R will be:

R-1 = {(2, 1), (3, 2), (4, 3), (5, 4)}

Step 4: Plot the Inverse

Now, it’s time to graph the inverse relation. However, as per the requirement, we will use open circles to indicate the points of the inverse. You’ll plot:

  • (2, 1)
  • (3, 2)
  • (4, 3)
  • (5, 4)

Remember to use open circles to signify that these points belong to the inverse relation.

Step 5: Final Presentation

Your final graph should display both the original relation with closed circles for its points and the inverse with open circles for its points. This visual representation allows for a clearer comprehension of how the relation and its inverse correlate on the coordinate plane.

Conclusion

By following these steps, you can effectively graph a relation alongside its inverse, clearly showcasing the relationship between each point pair. This graphical interpretation not only aids in understanding the concept but also enhances your ability to analyze functions and their properties in mathematics.

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