When is Y1 greater than Y2 Answer process

When is Y1 greater than Y2 Answer process

m> 2 or my2, B (2, Y2), so when m > 2, Y1 > Y2
Find the axis of symmetry of quadratic function as x = - B / 2A = - 3 / 2, the abscissa of the symmetric point of point B is - 5, so my2
Qi Huo