The graph of the function f(x)=ex6\displaystyle {f{{\left({x}\right)}}}={e}^{{-{x}}}-{6} can be obtained from the graph of g(x)=ex\displaystyle {g{{\left({x}\right)}}}={e}^{{x}} by one of the following actions:
(a) reflecting the graph of g(x)\displaystyle {g{{\left({x}\right)}}} in the x\displaystyle {x}-axis;
(b) reflecting the graph of g(x)\displaystyle {g{{\left({x}\right)}}} in the y\displaystyle {y}-axis;
your answer is (input a or b)
then, by one of the following actions:
(a) shifting the resulting graph to the right 6 units;
(b) shifting the resulting graph to the left 6 units;
(c) shifting the resulting graph upward 6 units;
(d) shifting the resulting graph downward 6 units;
Your answer is (input a, b, c, or d)
Is the domain of the function f(x)\displaystyle {f{{\left({x}\right)}}} still (,)\displaystyle {\left(-\infty,\infty\right)}?
Your answer is (input Yes or No)
The range of the function f(x)\displaystyle {f{{\left({x}\right)}}} is (A,)\displaystyle {\left({A},\infty\right)},
the value of A\displaystyle {A} is