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Find domain and range

Find domain and range-example-1

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There are a few ways to write domain & range.

For domain (x values)
-5<x<=5

(So exclude -5 because it's a hole, but include 5)

Another way to write this is (-5,5]

NOTICE that it's a parentheses & also a bracket. Parentheses means DON'T INCLUDE and [ ] means that it is included.

For range (y values)

-2<=y<=2

(There's a hole at (-5,-2) but there are other places where -2 is included in the function)

Another way to write this is [-2,2]

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