Posted by Sabrina on .
I have tried several times to find the vertex, line of symmetry, max/min value of the quadratic function.
I know I have to do completing the square to answer this but everytime i try to follow the steps I stumble hard! a(x-h)^2+k x= -b/2a
for y f(-1/2)
That is all i managed and am certain none of it is right either.