Finding the range (1 Viewer)

[cookiez69]

Hey, could someone find the range of the function:

Text book answer says it's all real y,

I'm not too sure if that's right or not, given the graph.

 

[Carrotsticks]

Hey, could someone find the range of the function:

Text book answer says it's all real y,

I'm not too sure if that's right or not, given the graph.

The range is y=1 (if x >0) and y=-1 (if x < 0).

 

[cookiez69]

Ah thought so, thanks!