Homework SourseLet intervals fx403xx2 Find the open intervals on which is i
Let intervals f(x)=40+3x-x^2. Find the open intervals on which is increasing (decreasing). Then determine the -coordinates of all relative maxima (minima).
1. is increasing on the intervals
2. is decreasing on the intervals
3. The relative maxima of occur at =
4. The relative minima of occur at =
1. is increasing on the intervals
2. is decreasing on the intervals
3. The relative maxima of occur at =
4. The relative minima of occur at =
Solution
df/dx=3-2x 1.df/dx>0 x<3/2 2.x>3/2 3.x=3/2 4.no relative minima
