10. Determine the amplitude, the period, the phase shift, and the vertical shift of the function
\( y = - 4 \sin [ 2 ( x + 30 ^ { \circ } ) ] + 1 \) with respect to \( y = \sin x \).
a. amplitude \( 4 \) period \( 90 ^ { \circ } \)
phase shift left \( 30 ^ { \circ } \)
vertical shift up \( 1 \) unit
b. amplitude \( - 4 \) period \( 90 ^ { \circ } \)
phase shift right \( 30 ^ { \circ } \)
vertical shift down \( 1 \) unit
c. amplitude \( 4 \) period \( 180 ^ { \circ } \)
phase shift left \( 30 ^ { \circ } \)
vertical shift up \( 1 \) unit
d. amplitude \( - 4 \) period \( 180 ^ { \circ } \)
phase shift right \( 30 ^ { \circ } \)
vertical shift down \( 1 \) unit