Question

find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function.. f(x)=-x^2+8x+6

Answer 1

x = 4 is the symmetry

(4,22) is the vertex
22 is the maximum

Answer 2

use
\[x=-\frac{b}{2a}\] to find
a) the first coordinate of the vertex
b) the axis of symmetry
then replace x by this to find y, and that will give you the maximum

Answer 3

cant believe i got that right lol

Answer 4

oh the equation is x=4 right?

Answer 5

yup

Answer 6

thanks. i got 2 more of these dang equations to do. thanks for your help.