Question 978829
Roots are x=-5 and x=2.
Axis of symmetry and the vertex are at x=-3/2.
Y value there is  {{{3(5-3/2)(-3/2-2)=-36&3/4}}}.


Vertex is a minimum.


{{{graph(300,300,-15,15,-36,2,3(x+5)(x-2))}}}