Graph the System $121 x ^ { 2 } + 225 y ^ { 2 } = 27,225$

Graph the system.
-A bridge has an arch in the shape of half an ellipse. If the equation of the ellipse, measured in feet, is $121 x ^ { 2 } + 225 y ^ { 2 } = 27,225$ , find the height of the arch from the road and the width of the arch.

A) height: $11 \mathrm { ft }$ ; width: $30 \mathrm { ft }$
B) height: $11 \mathrm { ft }$ ; width: $15 \mathrm { ft }$
C) height: $15 \mathrm { ft }$ ; width: $22 \mathrm { ft }$
D) height: $22 \mathrm { ft }$ ; width: $30 \mathrm { ft }$