Graphing Radical Functions

Video Lecture on how to graph radical functions

[Msstardom]

If the number is under the radical it's on the x-axis and if it's not under the radical it's on the y-axis?

[Msstardom]

for the last graph why isn't the plots negative after you multiplied it by negative 1/2

[Msstardom]

How would you know which way to move the parent function?