Find Equations of the Tangent Lines to the Curve $y = \frac { x - 10 } { x + 10 }$

question 72

Multiple Choice

Find equations of the tangent lines to the curve $y = \frac { x - 10 } { x + 10 }$ that are parallel to the line $x - y = 10$

• A) \(x - y = - 4.5\)
• B) \(x - y = - 2\)
• C) \(x - y = - 12.5\)
• D) \(x - y = - 19.75\)
• E) \(x - y = - 15\) .