Sketch the graph using the clues listed. Identify the turning points and x-intercepts f(x) is negative on the intervals (−∞,−5) and (−1, 3)
f(x) is positive on the intervals (−5, −1) and (3, ∞)
f(x) is increasing on the interval (−∞,−3.5) and (1.25, ∞)
f(x) is decreasing on the interval (−3.5, 1.25)