salza0918 salza0918 21-11-2022 Mathematics contestada Let f(x)=14x3−7x+2. Then 1. f is increasing on the interval(s) 2. f is decreasing on the interval(s) 3. f has local maximum(a) at x= 4. f has local minimum(a) at x= 5. f is concave up on the interval(s) 6. f is concave down on the interval(s) 7. f has inflection point(s) at