What the answer to this

B F(x) =

Step-by-step explanation:

The graph goes through (-1, 4) and (1,4)

F(x) =

let's assign y=4  from above coordinates

4=

x= ± 1

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex