9. [-112 Points] DETAILS 1 4 consider the e uation + q (x1)2 + y2 (x+1)2 +y2 =2 . The graph of this curve looks like this: .5 '7 (E) Find the positive y-intercept: |:| (b) Find the negative y-intercept: |:| (c) Use implicit differentiation to find the equation of the tangent line at the intercept in (a): (d) Use implicit differentiation to find the equation of the tangent line at the intercept in (b)