Consider the function #f(x)=sqrt(5x-5)+1#. Which inequality is used to find the domain?

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Answer 1 · 2016-11-21T07:26:13

The domain is #D_f(x) in [1, oo[#

#f(x)=sqrt(5x-5)+1#

To find the domain, we look what's under the square root sign.

#5x-5>=0#

#5x>=5#

#x>=1#

Therefore the domain of #f(x)# is

#D_f(x) in [1, oo[#