Solve the Problem $y ^ { 2 } - x = 4$

Multiple Choice

Solve the problem.
-Write an equation for the tangent line to the curve $y ^ { 2 } - x = 4$ at the point $( 1 , \sqrt { 5 } )$ .

A) $x - 2 y + 9 = 0$
B) $x - 2 \sqrt { 5 } y + 1 = 0$
C) $x - 2 \sqrt { 5 } y + 9 = 0$
D) $x - 2 y + 1 = 0$