Ok so recently my A/C stopped working out of no where. I have a line that site right next to my battery and I am thinking that is what it is. The only issue is that I don't know what the line is. Ever since my A/C stopped working my car started running hotter than normal and the fan comes on at a higher temperature. I just want to know what this line is. I know for a fact that it is broke. I am just hoping that it is my issue. I have a picture of the line that I am questioning but I can not figure out how to put it on here. Btw I own a 1994 Camaro V6 3.4

 

Is the line a hardkine or flexible line?