find the vertex and yintercept.
For the function f(x) = x²  6x + 8, Find the yintercept, the equation of the axis of symmetry, and the xcoordinate of the vertex. 
Examples
All

Algebra House 

For the function f(x) = x²  6x + 8, Find the yintercept, the equation of the axis of symmetry, and the xcoordinate of the vertex. 
Examples
All
