Write Equations of Rotated Conics in Standard Form
- $$31 x ^ { 2 } + 10 \sqrt { 3 } x y + 21 y ^ { 2 } - 144 = 0$$

Multiple Choice

Write Equations of Rotated Conics in Standard Form
- $$31 x ^ { 2 } + 10 \sqrt { 3 } x y + 21 y ^ { 2 } - 144 = 0$$

A) $\frac { x ^ { \prime 2 } } { 4 } + \frac { y ^ { \prime 2 } } { 9 } = 1$
B) $y ^ { \prime 2 } = - 4 \sqrt { 2 } x ^ { \prime }$
C) $x ^ { + 2 } = - 4 \sqrt { 2 } y ^ { \prime }$
D) $\frac { x ^ { \prime 2 } } { 9 } + \frac { y ^ { \prime 2 } } { 4 } = 1$