Describe the Transformation Required to Obtain the Graph of the Given

Multiple Choice

Describe the transformation required to obtain the graph of the given function from the basic inverse trigonometric
graph.
- $$f ( x ) = \sin ^ { - 1 } 7 x$$

A) Horizontal shrink by a factor of $\frac { 1 } { 7 }$
B) Horizontal stretch by a factor of 7
C) Vertical translation up 7 units
D) Vertical stretch by a factor of 7