Question 159802
the vertex is on the axis of symmetry


general eqn for axis is x=-b/(2a)


x=-3/(2*1)  __  x=-3/2


substituting  __  y = (-3/2)^2 + 3(-3/2) - 4  __  y = 9/4 - 9/2 -4  __  y = -25/4


vertex is (-3/2,-25/4)