First, we have to set up the problem like this:
[tex]y=-5\cdot \:0^2-11\cdot \:0-2[/tex]
There's a rule that says: [tex]0^a=0[/tex]
We are going to use that.
Apply the rule...
[tex]y=-0\cdot \:5-0\cdot \:11-2[/tex]
Multiply...
[tex]y=-0-0\cdot \:11-2[/tex]
Multiply again...
[tex]y=-0-0-2[/tex]
Subtract.
[tex]y=-2[/tex]
We have found the y-intercept.
Have a nice day! :)