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16 votes
16 votes
Find domain and range

Find domain and range-example-1
User Ben Hoffstein
by
2.9k points

1 Answer

8 votes
8 votes

Answer:

Domain = (-8,∞)

Range = (-∞,6)

Explanation:

Solving Notes:

  • Domain is horizontal so it is the width of x
  • Range is vertical so it is the height of y

  • Points that are filled in (solid black circles) indicate that the number does NOT include the number. In notation, we use ()'s.
  • Points that are hollow (white circles) indicate that the number DO include the number. In notation, we use []'s.
  • Arrows indicate continuing into infinity
  • Use ()'s when using ∞

Domain:

For domain, we are looking for line width. From the graph, it begins at -8 and uses a solid point indicating that -8 is NOT included.

so we know so far: (-8,

The arrow indicates going into infinity and we use ()'s for infinity so:

Domain = (-8,∞)

Range:

For range, we are looking for line height. From the graph, it goes from infinity (right side of graph) and at the highest point uses a solid point indicating that 6 is NOT included.

Range = (-∞,6)

User Slavugan
by
3.0k points
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