Question

Help Help Help?!?!?



What is the equation of the line of symmetry for the graph of y = 2(x + 3)2 – 4?
Answer

x = –4

x = –2

x = 3

x = –3

Answer 1

@ganeshie8 can you help?

Answer 2

x=3

Answer 3

are you sure its not -3

Answer 4

it is x = -3, as the line of symmetry passes through vertex for a parabola

Answer 5

\[2(x+3)^{2}-4=2x ^{2}+12x+18-4\]intersecting with y=14,\[2x ^{2}+12x=0\rightarrow x ^{2}+6x=0\rightarrow x=0,x+6=0\rightarrow x=0,x=-6\]Thus your simetry will be at x=-3


PS: my bad you were right, got hasty i guess...