Which statement is true about the given function? f(x) < 0 over the intervals (–infinity, –2.7) and (0.8, infinity). f(x) < 0 over the intervals (–infinity, –2.7) and (–1, 0.8). f(x) > 0 over the intervals (–infinity, –2.7) and (–1, 0.8). f(x) > 0 over the intervals (–infinity, –1) and (0.8, infinity).