Sketch the Graph of Y1 as a Solid Line or Curve

Multiple Choice

Sketch the graph of y1 as a solid line or curve. Then sketch the graph of y2 as a dashed line or curve by one or more of
these: a vertical and/or horizontal shift of the graph y1, a vertical stretch or shrink of the graph of y1, or a reflection of the
graph of y1 across an axis.
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A) $f ( x ) = \sqrt { - x + 4 }$
B) $f ( x ) = \sqrt { - x } + 4$
C) $f ( x ) = - \sqrt { x } + 4$
D) $f ( x ) = - \sqrt { x + 4 }$