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If f(x) is a function whose domain is [-1,9], and g(x)=f(2x), then the domain of g(x) is an interval of what width?

 Jun 13, 2022
 #1
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The "2x"     compresses f(x)  horizontally  by a factor of 2

 

So.....the interval width  =   [ 9 - - 1 ]  / 2  =   10 / 2  =   5

 

cool cool cool

 Jun 13, 2022

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