1.which equation represents the axis of symmetry of the function y = –2x² + 4x –6?
y = 1
x = 1
x = 3
x = –3
2.what are the coordinates of the vertex of the graph of the function y = –x² + 6x –11?
(3, –2)
(3, 16)
(–3, –29)
(–3, –20)
3.what are the coordinates of the vertex of the graph of the function y = –3x² –12x + 3?
(–2, 29)
(2, –15)
(2, –9)
(–2, 15)

1-of the function y=-2x^2+4x-6? 
You gave no choices. 
y=-2(x^2-2x) -6 
y=-2(x^2-2x+1) -6+2 
y=-2(x-1)² -4 

x=1
2-x: use the same equation to find x, x=-(6)/2(-1)=-6/-2=3 Then use that x in the original equation: y=-(3)^2+6(3)-11=-2 Vertex is at (3,-2)
3- coordinate of vertex 

x = - b / 2 a 

In this case: 

x = - ( - 12 ) / [ 2 ( - 3 ) ] = 12 / - 6 = - 2 

y - coordinate: 

y = - 3 ( - 2 ) ^ 2 - 12 ( - 2 ) + 3 = 

- 3 * 4 + 24 + 3 = - 12 + 24 + 3 = 15 so its D

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,