Question

What is the equation of the line of symmetry for the graph of y = 3(x + 2)2 – 4?
A.x = –4
B.x = –2
C.x = 2
D.x = 3

Answer 1

the vertex form is

y = a(x -h)^2 + k

and the curve has a vertex at (h, k)

x = h is the line of symmetry.

match you question to find the line of symmetry