Write an Equation for the Graph Given $- 3 ^ { - x } + 4$

Multiple Choice

Write an equation for the graph given. The graph represents an exponential function f with base 2 or 3, translated and/or
reflected.
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A) $- 3 ^ { - x } + 4$
B) $- 3 ^ { x } + 4$
C) $3 ^ { - x } + 4$
D) $- 3 ^ { - x } - 4$