f(x)=√5-3x

Question

How do I find the domain?

Answer 1

If you mean f(x) = √(5-3x), then the domain is the set of all real numbers for which 5-3x ≥ 0

 

                                                                                                                            -3x ≥ -5

 

                                                                                                                               x ≤ 5/3

 

Domain = {x l x≤5/3} = (-∞, 5/3]

Answer 2

Hi Kah,

 

The domain, that is the values of x that are defined for the function, of this function is all real numbers. There is no denominator that makes it undefined when it is equal to zero.