Find the Lengths of the Major and Minor Axes of the Ellipse

Multiple Choice

Find the lengths of the major and minor axes of the ellipse graphed by following equation. $\frac { \left( x ^ { \prime } \right) ^ { 2 } } { 1 } + \frac { \left( y ^ { \prime } \right) ^ { 2 } } { 36 } = 1$

A) Length of major axis is $2 a = 2 \cdot ( - 1 ) = - 2$ Length of minor axis is $2 b = 2 \cdot ( - 6 ) = - 12$
B) Length of major axis is $2 a = 2 \cdot 1 = 2$ Length of minor axis is $2 b = 2 \cdot 6 = 12$
C) Length of major axis is $2 a = 2 \cdot ( - 6 ) = - 12$ Length of minor axis is $2 b = 2 \cdot ( - 1 ) = - 2$
D) Length of major axis is $2 a = 2 \cdot 6 = 12$ Length of minor axis is $2 b = 2 \cdot 1 = 2$
E) None of the above