Practice problem
Determine the intervals on which the function f(x)=x3−6x2−15x+20f(x)=x^3-6x^2-15x+20f(x)=x3−6x2−15x+20 is increasing and decreasing.
Increasing: (−∞,−1)∪(5,∞)(-\infty,-1)\cup(5,\infty)(−∞,−1)∪(5,∞)
Increasing: (−∞,2)(-\infty,2)(−∞,2)
Increasing: (−1,5)(-1,5)(−1,5)
Decreasing: (2,∞)(2,\infty)(2,∞)
Decreasing: (−1,5)(-1,5)(−1,5)
Decreasing: (−∞,−1)∪(5,∞)(-\infty,-1)\cup(5,\infty)(−∞,−1)∪(5,∞)
Type a concept, like “slope” or “photosynthesis”.
