Question

Find the vertex of f(X)= 3x^-gx+8

Answer 1

i guess u mean x^2-gx+8?

Answer 2

x= -b/2a = g/6
y= 3(g/6)^2 -g(g/6) +8
y = g^2/12 -g^2/6 +8
y = -g^2/12 +8

vertex: (g/6, -g^2/12 +8)