### Home > CALC > Chapter 8 > Lesson 8.3.3 > Problem8-124

8-124.

Find the point of intersection of the two lines tangent to $y =\frac { 1 } { 1 + x ^ { 2 } }$ at $x = −1$ and $x = 2$.

Tangent at $x = − 1$:

Find tangent at $x = 2$.

Solve a system of equations to find the point-of-intersection between the two tangents.