Chapter 10 - Radical Expressions and Equations - 10-5 Graphing Square Root Functions - Practice and Problem-Solving Exercises - Page 630: 55

see graph

The given function, $ y=\sqrt{x+4}-1 ,$ is a translation of the parent graph, $ y=\sqrt{x} ,$ described by shifting the points of the parent graph $1$ unit down and $4$ units to the left. The black graph is the graph of $y=\sqrt{x}$ and the red graph is the graph of $ y=\sqrt{x+4}-1 .$