I think there is only one point x = -1.
Are you sure it's not x^2 + 1 = 0, if you had this equation the two points will be -1 and 1.
Or the equation was something like: x+1 =y?
If the equation is x+1=y.
First point: (-1,0)
Second point: (0,1)
//Hope this is what you are looking for. Sorry if it's incorrect.