SOLUTION: Please find the h(f(x)) and its domain. would you please show me your work h(x)=radical2x-1 +3

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Question 151486: Please find the h(f(x)) and its domain. would you please show me your work
h(x)=radical2x-1 +3

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Well, what is f%28x%29?


Do you want to find the domain of h(x)?


h%28x%29=sqrt%282x-1%29%2B3 Start with the given expression

Remember you cannot take the square root of a negative value. So that means the argument 2x-1 must be greater than or equal to zero


2x-1%3E=0 Set the inner expression greater than or equal to zero

2x%3E=0%2B1Add 1 to both sides


2x%3E=1 Combine like terms on the right side


x%3E=1%2F2 Divide both sides by 2 to isolate x



So that means x must be greater than or equal to 1%2F2 in order for x to be in the domain



So the domain of h(x) in interval notation is [)


Also, the domain of h(x) in set-builder notation is