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Does anyone know how to write the domain and range in interval notation?

Does Anyone Know How To Write The Domain And Range In Interval Notation class=

Sagot :

sqdancefan

Answer:

  • domain: (-3, 2)
  • range: (-5, 4]

Step-by-step explanation:

The domain is the horizontal extent of the graph. The range is the vertical extent.

__

We note that the points (-3, 0) and (2, -5) are not part of the graph.

Domain

As an inequality, the domain can be described by ...

  -3 < x < 2

When the limits don't include the "or equal to" case, they are shown in interval notation using parentheses (round brackets).

  (-3, 2) . . . . domain

__

Range

As an inequality, the range can be described by ...

  -5 < y ≤ 4

That is, the point (-1, 4) is part of the graph, so 4 is included in the range. As we said above, the point (2, -5) is not included in the graph or its range.

When the "or equal to" case is included, the limit is shown in interval notation using a square bracket.

  (-5, 4] . . . . range

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