Find the Interval(s) Where the Function $f(x)=3^{-x}$ Is Decreasing $(0, \infty)$ B) $(-\infty, 0)$

question 37

Multiple Choice

Find the interval(s) where the function $f(x) =3^{-x}$ is decreasing.

• A) \((0, \infty)\)
• B) \((-\infty, 0)\)
• C) \((-\infty, 0) \cup(0, \infty)\)
• D) \((-\infty, 3) \cup(3, \infty)\)
• E) \((-\infty, \infty)\)