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What is the domain and range

What is the domain and range-example-1
User Umberto Griffo
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28 votes

Answer:

Explanation:

Domain means what x's are on this graph, or what x's can you put into this equation. Range means what y's are in this graph or what y's can you get out if this equation. For y=x you can literally put in any x and get out any y, so the domain and range are both all real numbers. I couldn't see the choices on your drop down and there's several ways to write "all real numbers" as an answer. The absolute value graph y=|x| is a V-shaped graph so again, you can put in any x, but you only get positive numbers out (and 0, if you input 0) so the range us just all the y's that are 0 and bigger. That is y>=0. Again, there are several ways to write that such as y>=0 or [0, infinity symbol)

What is the domain and range-example-1
What is the domain and range-example-2
User Jogloran
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