Consider the equation 1 (x−1)2 + y2 + 4 (x+1)2 +y2 =2 . The graph of this curve looks like this:
(a) 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): y= x +
(d) Use implicit differentiation to find the equation of the tangent line at the intercept in (b): y= x +
