Question

f(x)= -2x^2+2x+2 find the vertex and line of symetry

Answer 1

Complete the square to put it in vertex form.

Answer 2

i think the x coordinate would be 1/2 which would also be the line of symetry right?

Answer 3

not sure what the y coordinate would be

Answer 4

Plug in 1/2 for x, and you can find y.

Answer 5

= -2(x^2 - x - 1)
= -2 ((x- 1/2)^2 - 1/4 - 1)
= -2(x- 1/2)^2 - 5/4)

vertex is at (1/2, 2 1/2)

Answer 6

line of symmetry is x = 1/2