How do I solve this?

Question

explain how to graph y = sqrt(x) - 3 by translating the graph of y = sqrt(x).

Answer 1

The difference between the two graphs is the minus 3 which will lower all y-values for that graph by 3.

 

So the graph of y=Sqrt(x)-3 is the same as y=Sqrt(x) only y=Sqrt(x)-3 is translated or moved down 3 units.

 

Graphing tool:

https://www.desmos.com/calculator