Questions: Which statement is true about the given function? f(x)<0 over the intervals (-â,-2.7) and (0.8, â). f(x)<0 over the intervals (-â,-2.7) and (-1,0.8). f(x)>0 over the intervals (-â,-2.7) and (-1,0.8). f(x)>0 over the intervals (-â,-1) and (0.8, â).
Transcript text: Which statement is true about the given function?
$f(x)<0$ over the intervals $(-\infty,-2.7)$ and $(0.8, \infty)$.
$f(x)<0$ over the intervals $(-\infty,-2.7)$ and $(-1,0.8)$.
$f(x)>0$ over the intervals $(-\infty,-2.7)$ and $(-1,0.8)$.
$f(x)>0$ over the intervals $(-\infty,-1)$ and $(0.8, \infty)$.
Solution
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