Answer:
x = 7
Step-by-step explanation:
y = (x – 7)^2 – 3
This equation is in vertex form
y = a(x-h)^2 +k
where (h,k) is the vertex
For a vertical parabola, the line of symmetry is x=h
-66
-(-2)^2=-4
-3(-2)(-3)+2(-3)^3= -62
-4-62= -66
