SOLUTION: how do you sketch this graph y=-2x^2-4x-1?

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Question 633254: how do you sketch this graph
y=-2x^2-4x-1?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 y = -2x^2-4x-1  Pt(0,-1) on this graph

y = -2(x-+1)^2  + 2 - 1

y = -2(x-+1)^2 +1   -2 < 0 parabola opening downward V(-1,1)

line of symmetry  x = -1