Question 966617
Domain and Range for {{{f(x)=sqrt(x-3)}}}.
{{{x-3>=0}}} is a requirement.  What does that tell you?


The function is based on {{{y=sqrt(x)}}} but f(x) is shifted three units to the right.  Think about the shape of the graph, and you should identify the lowest point and how far upward extends the values for f(x).


This is the graph:
{{{graph(300,300,0,20,-1,19,sqrt(x-3))}}}