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1.What are the domain and range of the function?

f(x)=^3 sqrt x-1

 

Options:

 

Domain: [0, ∞)

Range: [1, ∞)

 

Domain: [1, ∞)[1, ∞)

Range: [0, ∞)

 

Domain: (−∞, ∞)

Range: (−∞, ∞)

 

Domain: ​​ [1, ∞)

Range: ​ (−∞, ∞) ​

 

2.

What are the domain and range of the function?

f(x)=−3x√

 

Options:
Domain: [3, ∞)

Range: (−∞, ∞)

 


Domain: ​ [0, ∞) ​

Range: [0, ∞)

 


Domain: (−∞, 0]

Range: ​ (−∞, 0] ​

 


Domain: [0, ∞)

Range: (−∞, 0]

 

Thank you!!!!

 Feb 6, 2019
 #1
avatar+213 
-3

For the first one the domain and range for that function is the third set of domains and ranges which is 

Domain: (−∞, ∞)

Range: (−∞, ∞)

 

For the second on the equation f(x)=−3x√ is invalid but if it were f(x)=√-3x  the domain and range is flipped.  

Using f(x)=√-3x the domain and range would have been: 

Domain: (−∞, 0]

Range: [0, ∞)

 

Im hoping this helps you. ;P

 Feb 6, 2019

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