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Is $$y^{-x}$$ negative? >(1) $$y$$ is positive. >(2) $$x$$ is negative.
Correct. [[snippet]] Stat. (1): Since $$y$$ is positive, the fraction $$y^{-x}$$ is positive, so the answer is a definite "No." That is a definite answer, so **Stat.(1) → No → S → AD**. Stat. (2): You know that $$x$$ is negative, but that tells you nothing about $$y$$. * If you __Plug In__ $$y=3$$ and $$x=-3$$, then you get a positive number: >>$$y^{-x} = 3^{-(-3)} = 3^3 = 27$$. * If you __Plug In__ $$y=-3$$ and $$x=-3$$, then you get a negative number: >>$$y^{-x} = (-3)^3 = -27$$. There is no definite answer, so **Stat.(2) → Maybe → IS → A**.
Incorrect. [[snippet]] Stat. (1): Since $$y$$ is positive, the fraction $$y^{-x}$$ is positive, so the answer is a definite "No." That is a definite answer, so **Stat.(1) → No → S → AD**.
Incorrect. [[snippet]] Stat. (2): You know that $$x$$ is negative, but that tells you nothing about $$y$$. * If you __Plug In__ $$y=3$$ and $$x=-3$$, then you get a positive number: >>$$y^{-x} = 3^{-(-3)} = 3^3 = 27$$. * If you __Plug In__ $$y=-3$$ and $$x=-3$$, then you get a negative number: >>$$y^{-x} = (-3)^3 = -27$$. There is no definite answer, so **Stat.(2) → Maybe → IS → ACE**.