Finding Y-intercept of y=(3x/x+4)-5?

I made x=0
So I end up with:

y= (0/4)-5

Does the divide by zero mean the graph doesn't cross the y-axis? Would I say y is undefined?
Thanks for your help!

Wile E.2014-05-22T15:25:34Z

 
y = 3x / (x + 4) - 5

y-int.: x = 0,

y = 3(0) / (0 + 4) - 5
y = (0 / 4) - 5
y = 0 - 5
y = - 5

y-int. (0, - 5)
¯¯¯¯¯¯¯¯¯¯¯
 

CASprojectIB2014-05-24T14:37:17Z

To find the y-intercept, u just put, x=0, so in this function, the y-intercept would be

y = (0/4) - 5
y = -5

so the intercept is just, (0,-5)

alex2014-05-22T15:09:29Z

x=0 , y = -5

Can Khon Nhat Sa2014-05-22T17:11:34Z

Other already show work. I just show you the graph.