# How do you graph y=-sqrtx and how does it compare to the parent function?

First, let's take a look of the graph of $y = \sqrt{x}$
To graph $y = - \sqrt{x}$ we take the graph $y = \sqrt{x}$ and flip it over the $x -$axis.
In terms of the coordinates, we keep the $x$ values as they are and negate the $y$ value: $\left(x , y\right) \to \left(x , - y\right)$