Question

What are the vertex and the axis of symmetry of the equation?

y = –2x2 + 8x – 18
(1 point)


vertex: ( 2, –10)
axis of symmetry: x = 2
vertex: (2, –10)
axis of symmetry: x = –10
vertex: (–2, –10)
axis of symmetry: x = –2
vertex: (–2, 10)
axis of symmetry: y = –2

Answer 1

h=-b/2a
x=h is axis of symmetry
(h,k) is vertex

Answer 2

i picked c vertex: (–2, –10)
axis of symmetry: x = –2
and it waz wrong yo

Answer 3

a=-2
b=8
-b/2a = -8/-4 = 2.

Answer 4

Check doz negative signs, yo.

Answer 5

cool thanks