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how you get the domaing and range on a function

joseestuardo  Apr 19, 2017
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Assuming the x-y plane, the domain is usually considered to be the span of x values covered by a function and the range is the span of y values covered by the same function

 

Example :   Look at the graph of  y  = (x - 6)(x - 3) (x + 3) here :

 

https://www.desmos.com/calculator/6oayu1ziz8

 

 

"x"  can take on any value.......so the domain is (-infinity, infinity)

And "y"  can also take on any value....so the range is (-infinity, infinity)

 

 

 

cool cool cool

CPhill  Apr 19, 2017

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