A particular solution to a differential equation passes through (0,2). Approximate values of its derivative dxdy along the solution are given in the table.
x 0 1 2 3 4
dy/dx 1.2 0.8 0.0 −0.6 −0.9
On which interval within 0≤x≤4 is the solution most likely increasing and concave down?
a) 3<x<4
b) 2<x<3
c) 0<x<2
d) The solution is nowhere increasing and concave down on 0≤x≤4.