Question 609197
  <pre><font face = "Tohoma Ital" size = 3 color = "indigo"><b> 
Hi
Assume You meant: y = 3x^2 + 2x – 8
Using the vertex form of a parabola, {{{y=a(x-h)^2 +k}}} where(h,k) is the vertex
y = 3x^2 + 2x – 8
y = 3(x + 1/3)^2 - 1/3- 8    ||vertex(-1/3, -25/3 )min, a=3>0, parbola opens